Water & the Environment

Anaerobic digestion and disinfection are often applied in addition to the main activated sludge process. Onto which streams they are applied? (Chose the correct statement)

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What are the conditions needed for biological removal of phosphorus?

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Why is there a need for a recirculation stream between the aerated reactor and the anoxic step in the A2O process?

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Chemical precipitation of P is:

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Which of the following is not a disadvantage of the phosphate precipitation with iron?

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What is the prime source of nitrogen for the production of fertilizer today?

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What is the problem with today’s nitrogen anthropogenic cycle?

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What is the role of the acid in the process of leaching phosphorus from sluldge ash?

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Struvite is recovered mainly from which of the following wastewater stream:

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What types of chemicals are typically added for recovering phosphorus from wastewater as struvite?

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Discuss, Learn and be Happy דיון בשאלות

Anaerobic digestion and disinfection are often applied in addition to the main activated sludge process. Onto which streams they are applied? (Chose the correct statement)

What are the conditions needed for biological removal of phosphorus?

Why is there a need for a recirculation stream between the aerated reactor and the anoxic step in the A2O process?

Chemical precipitation of P is:

Which of the following is not a disadvantage of the phosphate precipitation with iron?

What is the prime source of nitrogen for the production of fertilizer today?

What is the problem with today’s nitrogen anthropogenic cycle?

What is the role of the acid in the process of leaching phosphorus from sluldge ash?

Struvite is recovered mainly from which of the following wastewater stream:

What types of chemicals are typically added for recovering phosphorus from wastewater as struvite?