There are many methods for treating aquaculture wastewater, which can generally be categorized into four main types: biological treatment, physical treatment, chemical treatment, and natural treatment. 1. Biological Treatment: This method uses the metabolic activity of microorganisms to transform organic pollutants in solution, colloid, and finely suspended states in wastewater
1. It has a high concentration of organic matter, a lot of suspended solids, and a dark color. It contains a large amount of animal feces, resulting in a very high concentration of NH3-N, and also contains a large number of pathogenic bacteria. 2. The pollutants in the wastewater mainly
I. Types of Livestock and Poultry Wastewater 1. Based on the type of livestock and poultry raised, livestock and poultry wastewater can be classified into: chicken wastewater, duck (goose) wastewater, rabbit wastewater, pig wastewater, cattle wastewater, and sheep wastewater. The water quality varies for each type of wastewater, but the
Ozone reaction towers have been widely used in various fields due to their strong oxidizing properties, efficient sterilization, and environmentally friendly and pollution-free characteristics. The following is a detailed summary of its core application scenarios:
The core function of an ozone reaction tower is to utilize the strong oxidizing properties of ozone (O3) to efficiently remove pollutants from water or gas through physical, chemical, or catalytic reactions, while achieving sterilization, disinfection, decolorization, and deodorization. The following is a detailed summary of its core functions:
There are many methods for treating wastewater. Different methods are required depending on the source. Specifically: 1. Degreasing Wastewater: Treatment methods for degreasing wastewater include acid extraction, centrifugation, or solvent extraction. Acid extraction is widely used. H₂SO₄ is added to adjust the pH to 3-4 to break the emulsion. Steam
1. The dyeing and printing industry is one of the largest water-consuming sectors in the textile industry, with water serving as a medium throughout the entire dyeing and finishing process. Dyeing and printing wastewater is characterized by large volume, high color intensity, and complex composition. It contains dyes, sizing agents,
Dyeing and printing wastewater can only be treated through a combination of processes. While developing these processes, it’s also crucial to achieve recycling and reuse, striving for zero wastewater discharge. (1) Conditioning: For wastewater with significant variations in water quality and quantity, the conditioning tank should have a longer retention
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
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
