What occurs in the secondary stage aerobic treatment?

Answers

Answer 1

In the secondary stage of aerobic treatment, microorganisms continue to break down organic matter through a process called activated sludge.

The wastewater is mixed with air and the microorganisms in a large tank, allowing them to consume any remaining organic material. The activated sludge is then separated from the water and returned to the tank to continue the treatment process. This stage also helps to remove any remaining suspended solids and dissolved organic matter, improving the overall quality of the effluent. The newly-formed bacterial cells help to form a dense mixture called activated sludge, which settles out of the water in a sedimentation tank.

The settled sludge is then either returned to the treatment process to continue treating the wastewater or removed from the system for further treatment or disposal. The treated water, which now contains much lower levels of organic matter, suspended solids, and nutrients, can then be discharged into a receiving stream or reused for irrigation or other non-potable purposes.

Overall, the secondary stage of aerobic wastewater treatment is a critical step in the treatment process that helps to further remove contaminants from the wastewater and improve its quality before it is discharged into the environment.

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Related Questions

22. Highlight the correct answer of each underlined pair. UV radiation has shorter longer
wavelengths and
lower/higher energy than visible light and infrared radiation.

Answers

Answer:

shorter and higher

Explanation:

UV  is further along in the EM spectrum so has a higher frequency and shorter wavelengths than visible light.

1. What are the symptoms of oak and tanoak trees
infected by P. ramorum?

Answers

Answer:

P. ramorum infects trunks, branches, twigs, leaves, and leaf petioles (the slender stems that support leaves). Experiments on tanoak trees revealed they could be infected without showing cankers or bleeding symptoms, making diagnosis difficult. When visible, trunk cankers are similar to those of the red oak group.Explanation:

Which crosscutting concept would best apply to someone catching the flu from someone else

Answers

Patterns. ...
Cause and effect: Mechanism and explanation. ...
Scale, proportion, and quantity. ...
Systems and system models. ...
Energy and matter: Flows, cycles, and conservation. ...
Structure and function. ...
Stability and change.



I wanna say the answer is cause and effect

Please Help.

8) Chlorophyll gives plants their green color. Chlorophyll is produced only when plants are exposed to light, so plants kept in darkness have no chlorophyll and appear white. The best explanation for this is that...

A) darkness mutates the chlorophyl genes, causing them to produce a white color

B) chlorophyll is not needed by green plants at night

C) light is required for chlorophyll genes to be expressed

D) genetic information in cells is not influenced by the outside environment​

Answers

Answer:

C

Explanation:

Lig is required for chloroform

Which term best describes a group of cells that are similar in composition and function together to perform a task?
A. body system
B. tissue
c. organell
D. organ

Answers

Answer:

B. Tissue

Explanation:

Using a microscope in the science lab, Jill observed two unknown cell: Cell
1 and Cell 2. Cell 1 she identified as a plant cell and Cell 2 as an animal
cell. Her teacher told her she identified the cells correctly. What did Jill most
likely observe to correctly identify the cells?
A. Cell 2 had a cell membrane and Cell 1 did not.
B. Cell 1 had a cell wall and Cell 2 did not.
C. Cell 2 had a chloroplast and Cell 1 did not.
D. Cell 1 had a nucleus and Cell 2 did not.

Answers

Answer:
B. Cell 1 had a cell wall and cell 2 did not

Explanation:
Why A,C and D is wrong:

A: Both plant cells and animal cells have cell membrane

C: Plant cell (cell1) had a chloroplast and animal cell (cell2) did not

D: Both plant cells and animal cells have nucleus

Cells are living entities, which are the structural and functional units of life. The cells of the plant and animals differ on the basis of structure and composition.

The correct answer is:

Option B. Cell 1 had a cell wall and Cell 2 did not.

Plant cells are the eukaryotic cells, which consist of the cell organelles like mitochondria, nucleus, cytoplasm, chloroplasts, and Golgi apparatus. The distinctive feature of the plant cell is the presence of a cell wall.

Animals' cells are also the eukaryotic cells, which consist of mitochondria, Golgi apparatus, nucleus, and cytoplasm. The cell membrane is also found in the animal cell. The cell wall is absent in the animal cell.

Thus, the correct answer is Option B.

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adaptation in sexual populations is facilitated by: linking beneficial mutations that originated in distinct lineages. unlinking of deleterious and beneficial mutations. genetic variation arising from new combinations of alleles. g

Answers

The advantage of gender comes because physically generated progeny are more fitness variable, allowing for quicker adaptability, as predicted by theory.

Preservation on pre-existing genetic differences & selection on new mutations are the two unique ways that population adapt to novel environments. These additional sources of advantageous alleles may have different evolutionary processes and have different genetic results. Adaptation is characterised by a pattern of diminishing marginal returns, in which early substituents have large fitness effects as well as later ones have smaller effects, according to DNA sequence modeling techniques of adaptation. The advantage of gender comes because physically generated progeny are more fitness variable, allowing for quicker adaptability, as predicted by theory.These models also predict that adaptation must involve mutations with relatively large fitness effects. a biological trait that has a heritable base, is improved by natural selection, and helps with reproduction and/or survival. Therefore, the main problem is to articulate the benefits of sexual difference.

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Questions why is the heating in the Benedict's is test and millon test carried out in a water bath​

Answers

The heating in the Benedict's test and Millon test is carried out in a water bath to maintain a constant and controlled temperature. This ensures accurate and reliable results by minimizing external factors that could influence the reactions taking place.

The Benedict's test and Millon test are both chemical tests used to detect the presence of reducing sugars, such as glucose, in a given solution. These tests involve a reaction between the reducing sugar and a reagent, which undergoes a color change in the presence of the sugar.

Heating is an essential step in both tests because it helps to facilitate the reaction between the reducing sugar and the reagent. By applying heat, the rate of reaction increases, allowing for faster and more reliable results. However, it is crucial to maintain a consistent and controlled temperature throughout the reaction to ensure accuracy.

A water bath is used for this purpose. A water bath consists of a container filled with water that is heated to a specific temperature, typically around 70-100 degrees Celsius, depending on the test being performed. Placing the test tubes containing the reaction mixture into the water bath allows the solution to be heated uniformly and consistently.

The water bath provides a stable and controlled environment, preventing sudden temperature fluctuations that could affect the reaction rate and, consequently, the test results. It helps to maintain the reaction at the desired temperature for a specified duration, ensuring optimal conditions for the reaction to occur.

By carrying out the Benedict's test and Millon test in a water bath, scientists and laboratory technicians can achieve reliable and reproducible results, allowing for accurate identification of the presence of reducing sugars in a given solution.

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type a paragraph summarizing cellular division and differentiation
PLS HELP!!! PROJECT DUE IN 30 MINUTES!!

Answers

Answer:

Cellular differentiation is the process in which a cell changes from one cell type to another. Usually, the cell changes to a more specialized type. ... Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover.

Answer:

Cellular differentiation is when a cell changes from one cell type to another—usually, the cell changes to a more specialized class. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and average cell turnover.

Explanation:

IM A DIFFERENT BREED!

what's the difference between a secondary follicle and a Graafian follicle

Answers

Explanation: Secondary follicles develop into tertiary, or Graafian follicles, characterized by a fluid-filled space called the antrum, and two layers of theca (theca interna and theca externa). The secondary oocyte develops a thick covering known as the zona pellucida. The Graafian follicle releases the oocyte through ovulation.

An effective short-term remediation strategy for the pond would be to.

Answers

From what we know, we can confirm that one effective short-term remediation strategy for the pond would be to use tertiary water cleaning treatment protocols.

Why is this a temporary solution?

This has to do with the fact that for a body of water such as a pond, these protocols will work just fine in order to clean the water, however, it does not tackle the root cause of the contamination and therefore the solution will only be temporary.

Therefore, we can confirm that one effective short-term remediation strategy for the pond would be to use tertiary water cleaning treatment protocols.

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Explain how to distinguish different species by their DNA.

Answers

DNA analysis can be used to distinguish different species by comparing specific regions of their DNA sequences.

To distinguish different species by their DNA, scientists primarily focus on comparing specific regions of the DNA sequences that are highly variable among species. One commonly used region is the mitochondrial DNA (mtDNA), which is inherited maternally and has a higher mutation rate compared to nuclear DNA. Another region is the ribosomal RNA genes (rRNA), which exhibit variations among species.

The process typically involves extracting DNA samples from different organisms, isolating the target region of interest, and sequencing the DNA to determine the nucleotide sequence. The sequences obtained from different species are then compared to identify differences and similarities.

These differences can be used to create DNA profiles or genetic markers specific to each species. Advanced techniques such as DNA barcoding or whole-genome sequencing can provide more comprehensive information and aid in species identification.

By comparing DNA sequences, scientists can uncover genetic variations unique to different species, allowing them to distinguish and classify organisms accurately. This information is valuable in various fields, including taxonomy, conservation biology, forensic science, and evolutionary research.

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lamar constantly thinks about dirt and bacteria that exist all around him, and he feels compelled to wash his hands many times throughout the day. these thoughts and actions upset him and he wishes that he could control them. this is an example of the criterion for defining abnormal behavior.

Answers

Any behavior that is abnormal, statistically rare, harmful to the individual or those around them, or that is otherwise uncharacteristic of the culture in question.

Disorders of abnormal psychology include anxiety disorders, compulsive behaviors, PTSD, mood disorders, personality disorders, schizophrenia, delusional disorders, substance use disorders, dissociative disorders, and impulse control disorders. Such behavior is frequently seen as a sign of a mental or emotional disturbance, which can range from mild adjustment issues to serious mental disorders.

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I need to know what 13 is

I need to know what 13 is

Answers

i see you got the answer already im so sorry for doing this but im answering to get point for my math test. i wish good luck to you and a merry christmas

What is the function of enzymes in biological systems?
O Enzymes act as catalysts to speed up chemical reactions.
Enzymes act as products to create new chemical reactions.
Enzymes act as substrates when the necessary proteins are unavailable.
Enzymes permanently bond with substrates to create the new reaction products,

Answers

Answer:

Enzymes acts as catalysts to speed up chemical reactions.

Explanation:

Enzymes are otherwise known as biological catalysts which means that the help speed up reactions and break down large food molecules.

The system of classification, first developed by Linnaeus in the 1700's, which is now used by biologists and paleontologists has modern humans and their near relation in the Genus (Fill in the Blank; 1 word.) Question 25 Within the last 30 years or so, that more traditional view of the Tree of Life has been replaced with the use of phylogenetic (Fill in the Blank; 1 word)

Answers

The system of classification, first developed by Linnaeus in the 1700's, which is now used by biologists and paleontologists has modern humans and their near relation in the Genus Homo.

The genus Homo is a taxonomic classification that includes modern humans (Homo sapiens) and several extinct species that are closely related to humans. It is part of the family Hominidae, which also includes great apes such as chimpanzees, bonobos, gorillas, and orangutans. The genus Homo is characterized by certain distinctive traits that separate it from other hominin species. These traits include an upright bipedal posture, a larger brain size relative to body size, reduced facial and dental features, and the ability to create and use complex tools.

The earliest known species in the genus Homo is Homo habilis, which lived approximately 2.4 to 1.4 million years ago. Homo habilis is considered one of the earliest tool-makers and was likely capable of simple stone tool production. Another significant species is Homo erectus, which existed from around 1.9 million to 143,000 years ago. Homo erectus had a larger brain size and more advanced tool-making abilities than earlier hominin species.

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This freshwater biome is characterized by fast-flowing water that can originate from underground springs or runoff, which carries sediment and organic material.

Answers

Answer: Rivers

Explanation:

The freshwater biome is a **river biome**. Rivers are bodies of freshwater characterized by their continuous flow of water, which can come from various sources such as underground springs, melting snow, and rainfall runoff.

The fast-flowing water carries sediment and organic material downstream, contributing to the ecosystem's dynamics and providing habitats for a diverse range of organisms.The river biome is a dynamic freshwater ecosystem shaped by the rapid movement of water sourced from underground springs, melting snow, and runoff. The swift flow propels sediment and organic matter downstream, influencing the biome's unique characteristics. Rivers support diverse life forms, from microscopic organisms to larger aquatic animals like fish and amphibians.

The constant flow provides oxygenation and nutrient distribution, sustaining an array of plant species along the banks. These biomes are hubs of biodiversity, fostering complex interactions between species. Moreover, human settlements have historically flourished along rivers, utilizing their water for agriculture, transportation, and industrial purposes. However, these ecosystems face challenges such as pollution, habitat destruction, and alterations in flow patterns due to human activities, necessitating conservation efforts.

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If a diploid cell has 20 chromosomes, how many chromosomes will be in its haploid cell? If a germ cell has 10 chromosomes, how many chromosomes will be in its somatic cells? If a cell in G1 phase has 4 chromosomes, how many chromosomes will it have by the end of meiosis? If an unknown cell is going through mitosis, is it a germ cell or a somatic cell? By the time an unknown cell finishes meiosis, is it a haploid or somatic cell?​

Answers

Answer:

20

Explanation:

I'm randomly guessed

write about important steps in the process of water purification in a water treatment plant​

Answers

Answer:

They typically consist of several steps in the treatment process. These include: (1) Collection ; (2) Screening and Straining ; (3) Chemical Addition ; (4) Coagulation and Flocculation ; (5) Sedimentation and Clarification ; (6) Filtration ; (7) Disinfection ; (8) Storage ; (9) and finally Distribution.

An atom of a certain element has 36 proton,36 electrons and a mass number of 84.at room temperature this element is a very stable gas.how many neutrons are in this atom

Answers

Answer:

b^2+c^2+a^2 pretty easy


Do you think that sharks and dolphins' similarities (body shape, fin, and flippers) are homologies or analogies

Answers

Answer:

homologous* or analogous*. You spelled them wrong :)

I believe they are homologous because they more than likely share ancestry. They are underwater animals with the same... everything pretty much.

Explanation:

According to the course text, what basic features are used to classify living things? Group of answer choices Photosynthesis Environment Flight Multicellularity Visible Nucleus Flagella Reproduction Mitochondria Amoeboid movement Blood type Life span Gene sequences

Answers

According to the course text, basic features used to classify living things are as follows: Reproduction, Photosynthesis, Multicellularity, Visible Nucleus, Mitochondria, and Gene sequences.

Living things are those that possess life and carry out vital life functions. Classification of living things is the organization of living things into groups based on common characteristics. The most common features used to classify living things include: Reproduction, Photosynthesis, Multicellularity, Visible Nucleus, Mitochondria, Gene sequences.

So, the basic features used to classify living things are Reproduction, Photosynthesis, Multicellularity, Visible Nucleus, Mitochondria, and Gene sequences.

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Post your thoughts on whether or not genetically modifying embryos to produce designer babies is a good or bad idea.

Answers

Answer: My

Explanation: I believe that it could end a lot of diseases and issues. It would give parents with hereditary illnesses a chance to have healthy offspring, which could be  for certain families. I also believe studies need to go further proving that it's safe and will not damage offspring for life.

Gene on a chromosome lies close to another gene controlling a different trait. This indicates that jeans are blank the first gene contributes to the expression of the second gene. This indicates blank

Answers

Answer: genes are linked

Explanation: Gene on a chromosome lies close to another gene controlling a different trait. This indicates that genes are linked, meaning they are physically close to each other on the same chromosome. The proximity of these genes suggests that they are more likely to be inherited together as a unit, rather than independently assorting during the process of genetic recombination.

Please help...Will mark brainiest....It is due and I need help

Please help...Will mark brainiest....It is due and I need help

Answers

Answer:

Explanation:

For the 1st one with the Cheetah: It would be a long tail because it helps them balance when they turn. Sinch Cheetahs move extremely quickly they need a balance to ensure they don't topple over when they turn, this tail provides this balance.

For the 2nd one with the bear: Thick coats on a bare will help provide warmth whenever they go to hybernate. Thin fur would leave room for freezing and wouldn't be able to help them maintain the proper body temperature.

The 3rd one with the clownfish: A round tail provides a bigger boost when swimming since it is able to push more water. A forked tail would create a gap when they swim so they would have to expend more energy than with a round tail.

The 4th one with the Finch: Since grubs live underground a thinner beak would be able to dig them out and stab them faster. This allows them to reach farther and get more food.

Answer:

D AZ FCSDF SDF F

Explanation:

just seeing how this works don't mind me

Name the following.

(a) Tissue that forms the inner lining of our mouth.

(b) Tissue that connects muscle to bone in humans.

(c) Tissue that transports food in plants.

(d) Tissue that stores fat in our body.

(e) Connective tissue with a fluid matrix.

(f) Tissue present in the brain​

Answers

a) epithelial tissue
b) tendon
c) phloem
d) adipose tissue
e) blood
f) gray matter and white matter.

explain how sexual reproduction increases genetic diversion in many species of plants and animal, making sure to include the importance and function of gamites

Answers

Answer:

Sexual reproduction increases genetic diversion because there are two parents, unlike in asexual reproduction where there is only one.

Explanation:

During sexual reproduction, gamites come from both parents and mix together to create genes and traits for the offspring. Gamites are formed through meiosis (reduction division), in which a germ cell undergoes two fissions, resulting in the production of four gametes.

6. How do liquid water, ice, and water vapor differ from each other?*
They are different states of matter.
They are different compounds.
Ο Ο Ο Ο
They are made of different kinds of molecules.
They are made of different kinds of atoms.

Answers

They are diff states of matter

_____ thought capitalism would inevitably lead to revolution
because there is contradiction between the wealth created for some
and the immiseration and poverty created for others .

Answers

The person who thought capitalism would inevitably lead to revolution because there is a contradiction between the wealth created for some and the immiseration and poverty created for others was Karl Marx. Marx's idea of capitalist exploitation is that it is a mechanism by which the bourgeoisie

(owners of the means of production) would accumulate more than 100% of the value of a worker's work since the laborer receives only a tiny portion of the value of their work while the rest goes to the capitalist who owns the means of production. Marx argued that capitalism is inherently exploitative and that workers would eventually become aware of this and rise up in a revolution to overthrow the capitalist system. He predicted that this would happen because capitalism creates an inherent conflict between the working class, who are exploited, and the capitalist class, who own the means of production and control the wealth of society.

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The nurse is caring for a client who is HIV positive and is newly diagnosed with Mycobacterium tuberculosis (TB). Which manifestations does the nurse associate with TB? Select all that apply.
Rash
Weight gain
Cough
Fever
Night sweats

Answers

The manifestations that the nurse can associate with TB includes cough, fever, and night sweats.

Tuberculosis is an infectious disease that primarily affects the lungs but can also affect other parts of the body. The nurse must be aware of the symptoms of TB so that the client can be treated promptly.

The nurse should expect the client to exhibit cough, which may produce blood-tinged sputum, fever, and night sweats. These symptoms may be persistent or may come and go over time. Weight loss and fatigue are also common with TB. A rash is not typically associated with TB, but skin testing may reveal a positive reaction to the tuberculin antigen.

The client may also experience chest pain and difficulty breathing, as the disease progresses. In some cases, the disease may spread to other organs such as the brain, spine, and kidneys, causing additional symptoms. It is important to monitor the client's symptoms closely and report any changes to the healthcare provider immediately.

The nurse should educate the client about the importance of adherence to medication, as TB treatment is lengthy and may take several months to complete. It is also important to educate the client about infection control measures to prevent the spread of TB to others.

In conclusion, the nurse should expect the client with TB to exhibit cough, fever, night sweats, weight loss, and fatigue. Early identification and prompt treatment are critical to prevent the spread of TB and to ensure the client's recovery.

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I will give brainliest if you fill this in for me pls!!!!!!!!!!!!!!!!!!!!! Q2 Identify the rule of the game. Enter your response here Matt and his friend Joe make up their own game and decide to play it. Player 1 starts the game. He announces a ratio, and player 2 has to respond according to a rule. Matt and Joe take turns to be Player 1. Look at the following table and figure out the rule of the game. Game number Player 1 says Player 2 says 1 1:3 9:27 2 81:9 9:1 3 4:16 1:4 4 30:6 5:1 5 2:7 8:28 Jax manages a team of ten telemarketers. The composition of his team is as follows: three people are brand new; five have been at the company for two years; two have been there five years and are top sales earners. With his new members, Jax provides daily direction and support. His top earners run with the goals that they set, planning how to reach them on their own and reporting back to Jax when they reach their targets. The other five team members Jax coaches and trains every two months. What leadership style is Jax implementing with his team Metals that have shine and luster? Which of the following is a like radical to6 3*/2xA: 6 3*/xB: 6 4*/2xC:-5 3*/2xD:6 3*/2x 2* NO LINKS!!!14. Consider the table Find out the area of a body which experiences a pressure of 500 Pa by a force of100 N? White southern democrats considered scalawags traitors to both their party and their race? Which one of the following statements is FALSE? A. ROIC is driven by firms' competitive advantages that enable them to realize price premiums, cost and capital efficiencies, or some combination of these. cannot sustain their competitive advantage. C. When ROIC equals the cost of capital, there is no relationship between growth and value. D. Industry structure is an important but not exclusive determinant of ROIC, because there are still significant variations in ROIC for individual companies within each industry. Which of the following themes are present in Things Fall Apart? Select two answers. A number of people who work on similar tasks or follow the same procedures is called a:________ For each of the counting questions, find the correct computation from the list below. Answers may be used multiple times or not at all. Explain your reasoning for partial credit. P(10,4) 104 410 (13 10 None of these 4 (a) How many passwords can be made from 4 digits (using the numerals 0 through 9) with repetition of digits allowed? (b) How many passwords can be made from 4 digits (using the numerals from 0 through 9) if all the digits must be distinct? (c) How many passwords can be made from 4 digits (using the numerals from 0 through 9) if the digits must be strictly increasing? For example, 1234 would work but 0117 would not work because the second to third digits are not increasing. (d) How many passwords can be made from 4 digits (using the numerals from 0 through 9) if the digits must be in non-decreasing order? For example, 0117 would work but 7708 would not work because the third digit is less than the second digit. go How many lattice paths are there from (0,0) to (10,4)? Triangles L M N and P O N connect at point N. Angles L M N and N O P are congruent. Why is the information in the diagram enough to determine that LMN ~ PON using a rotation about point N and a dilation?because both triangles appear to be equilateralbecauseMNL and ONP are congruent anglesbecause one pair of congruent corresponding angles is sufficient to determine similar trianglesbecause both triangles appear to be isosceles, MLN LMN, and NOP OPN 30 points Which of the following statements about change in ecosystems is true?a. Ecosystems experience change through human activity only.b. Ecosystems experience change through natural events only.C. Ecosystems experience no change.d. Ecosystems experience change through human activity and natural events.Please select the best answer from the choices provided 31527 rounded to the nearest 10 Draw one of the oxygen-containing mass spectral fragments that is formed by alpha cleavage of 2-butanol, CH3CH(OH)CH2CH3.Hint: alpha cleavage breaks the bond between the hydroxyl carbon and the carbon adjacent to it. If the atomic mass unit (AMU) is the average mass of all the isotopes of an element; what is the mass number of an element? Significant brain development of the _______ is finally completed during emerging adulthood. Who painted the image above?a. Jacques Copleyb. John Singleton CopleyC. Jacques-Louis Davidd. Jacques Horatii calculeaza,grupand convenabil factori8x7x0 3x7x2 5x8x27x4x2 5x10x5 4x9x22x9x5 10x9x9 2x3x7