Oily wastewater refers to the wastewater containing fat (fatty acids, soap, fat, wax, etc.) and various oils (mineral oil, animal and vegetable oil)。Oily wastewater is characterized by high COD, BOD, a certain odor and color, flammable, easy oxidation decomposition, generally lighter than water, difficult to dissolve in water, oily wastewater is a large amount of wide and dangerous...
05-30The biochemical treatment of wastewater is one of the most important processes in the wastewater treatment system, referred to as biochemical treatment。Biochemical treatment is the use of microbial life activity process to effectively remove soluble organic matter and some insoluble organic matter in wastewater, so that the water can be purified。In fact, we are not very unfamiliar with biochemical processing, and there is a food in the natural body of water...
05-15Common basic concepts 1, sewage treatment is the use of various technologies and means，Separation, removal, recycling or conversion of pollutants contained in sewage into harmless substances，To make the sewage meet the water quality requirements for discharge into a water body or reuse，It is subjected to physical, chemical and biological treatment，The process by which water is purified。 2. The amount of sewage is certain...
05-11
Ammonia nitrogen wastewater mainly comes from fertilizer, coking, petrochemical, pharmaceutical, food, landfill and so on，A large amount of ammonia nitrogen wastewater discharged into the water body not only causes the eutrophication of the water body, resulting in black odor，Water treatment becomes more difficult and costly，It even has toxic effects on people and living things，For the treatment process of ammonia nitrogen wastewater (before 2014), there are biological methods, physical and chemical methods of various treatment workers...
05-09Abstract: In the process of industrial production, a large amount of sewage will be produced. If the sewage is discharged into the water body without treatment, it will seriously damage the ecological environment。At the same time, the kinds of refractory organic matter remaining in the water body are also increasing, which makes the scarce water resources in our country worse。Advanced oxidation techniques are hard to come by...
04-28
问题1. Consult you: Our factory uses the oxidation ditch treatment process, the water intake is 3,700m3/h, the influent BOD5 is about 80mg/L, the secondary discharge standard, the daily sludge discharge capacity is 50m3/h, the sludge concentration MLSS has reached 13,000mg/L, I do not know what to do？ 答复：...
04-25
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