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Assoli18 [71]
3 years ago
8

Describe a main goal of secondary treatment in a modern sewage treatment plant.

Chemistry
2 answers:
Vikki [24]3 years ago
6 0

Answer:

Explanation:

The main goal of secondary treatment is the further treatment of the liquid waste from primary treatment to remove the residual organics and suspended solids. Most times, secondary treatment follows primary treatment and involves the removal of biodegradable dissolved and colloidal organic matter using aerobic biological treatment processes. Aerobic biological treatment as the name implies, it is performed in the presence of oxygen by aerobic microorganisms (principally bacteria) that metabolize the organic matter in the wastewater, thereby producing more microorganisms and inorganic end-products majorly CO2, NH3, and H2O.

prohojiy [21]3 years ago
4 0

Answer:

A wastewater treatment plant serves to evacuate solids, reducing organic matter and present pollutants, thus restoring oxygen. Bacteria and other microorganisms are used to reduce organic matter and pollutants, so that they consume the organic matter present in the waste water.

The primary purpose of secondary treatment is to improve the process so that at least 90% of all contaminants are evacuated. The equipment used for this purpose is an aeration tank, which supplies large amounts of air to a mixture of wastewater, bacteria and microorganisms. The oxygen found in the injected air increases the growth of microorganisms, so that they consume the organic matter found in the waste water.

Explanation:

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How many moles of Al2(so4)3 can be produced from 7.25E24
rodikova [14]

12.04moles

Explanation:

Given parameters:

Number of molecules = 7.25 x 10²⁴molecules

unknown:

Number of moles = ?

Solution:

The moles of a substance is the amount of substance that contains avogadro's number of particles:

  1 mole of a substance = 6.02 x 10²³

   x moles of the compound will contain: \frac{7.25 x 10[tex]^{24}}{6.02 x 10^{23}}[/tex] = 12.04moles

 This gives 12.04moles

Learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

5 0
3 years ago
PLEASE HELP ME FAST THANKYOU! :)
Kamila [148]
Volatile: easily evaporated substance
6 0
3 years ago
Perform an online search to find the structures of the compounds in the questions that follow. Provide a method for separating t
Vedmedyk [2.9K]

The chemical separation method for two of the above named mixtures or compound indicated above are explained below.

<h3>What is a Chemical compound?</h3>

A chemical compound is a material generated by the chemical union of two or more elements in set quantities.

<h3>What are the separation methods?</h3>

<u>Benzophenone and tributylamine</u>

The combination of benzophenone and tributylamine is in diethyl ether (given in question). Tributylamine is a base that may readily be changed to a water soluble salt by adding an aqueous acid.

Add dilute aqueous acid to the solution. The amine salt will be present in the aqueous layer, whereas benzophenone will be present in the ether layer. A separatory funnel will isolate levels.

<u>Fluorenone, octanoic acid, and dicyclohexylamine</u>

Fluorenone, Octanoic acid, and dicyclohexyl amine: The combination comprises both an acid (octanoic acid) and a base (dicyclohexyl amine) (dicyclohexyl amine).

Add the diluted aqueous base to the solution (like NaCO3). Divide the two layers.

The acid is present in the aqueous layer as a salt, while the fluorenone and amine are present in the ether layer.

Add weak aqueous acid to this combination of fluorenone and dicyclohexyl amine.

Divide the two layers. The amine is present in the aqueous layer, and fluorenone is present in the ether.

Learn more about chemical separation at;
brainly.com/question/17143033
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<u></u>

5 0
2 years ago
1. There are more yeasts than algae.
likoan [24]
1: False
2: Mitosis
3: False
4: True
5: Gas
7 0
3 years ago
Read 2 more answers
Chemistry significant figures<br> 3.42 + 8.132
olasank [31]

3.42 + 8.132 = 11.55

Sig Figs

4

Decimals

2

Scientific Notation

1.155 × 101

7 0
4 years ago
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