12/26/2025 – Wastewater & Sewage treatment plant

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What are some commonly used anaerobic-aerobic combined processes?

An anaerobic-aerobic process for treating pharmaceutical wastewater achieves a BOD5 removal rate of 95% and a COD removal rate of 96%, with stable treatment results. A micro-electrolysis-anaerobic hydrolysis acidification-SBR process for treating chemically synthesized pharmaceutical wastewater shows that the entire series process has strong resistance to changes in wastewater quality

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Where does tanning wastewater originate?

Depending on the different stages of leather tanning (preparation, tanning, and finishing), tanning wastewater sources can be broadly categorized into three types: 1. In the preparatory stage, wastewater mainly originates from washing, soaking, hair removal, liming, deliming, softening, and degreasing; the main pollutants include organic waste, inorganic waste, and organic

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What are the different types of tanning wastewater, and what are their characteristics?

1. Sulfur-containing wastewater: This refers to the liming wastewater and corresponding washing wastewater generated during the liming process of hair removal using the lime-alkali method. Lime-liming wastewater contains protein, lime, sodium sulfide, and suspended solids, with total CODcr at 28%, total S2- at 92%, and total SS at 75%. 2.

12/26/2025 No Comments

Day: December 26, 2025

What are some commonly used anaerobic-aerobic combined processes?

Where does tanning wastewater originate?

What are the different types of tanning wastewater, and what are their characteristics?

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