Wastewater biochemical treatment denitrifying microorganism compound nutrition agent

Abstract

The invention discloses a wastewater biochemical treatment denitrifying microorganism compound nutrition agent which contains the following raw materials by weight percent: 1-26% of glucose, 1-38% ofsaccharose, 1-22% of starch, 1-15% of sodium acetate, 1-13% of a nitrogen nutrient, 1-10% of a phosphorus nutrient, 0-5% of alkalinity modifier, 1-3% of amino acid, 1-2% of vitamin, 0-1% of protease and 1-5% of a microelement additive. A composite carbon source containing different carbon atoms is adopted to replace a single carbon source, and can meet the nutrition demands at different proliferation stages of denitrifying bacteria; meanwhile, according to water quality, and the nitrogen nutrient, the alkalinity modifier, the amino acid, a biological protease preparation and the microelement additive, the nutrition agent is a solid composite preparation, is convenient to transport and store, only needs one dispensing equipment to greatly save transportation and warehouse charges, and is suitable for various sewage treatment plants in biochemical denitrification process stages.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a denitrifying microbial compound nutrient preparation for waste water biochemical treatment. Background technique [0002] Denitrification, also known as denitrification, denitrifying bacteria reduce nitrate under anoxic conditions and release molecular nitrogen (N 2 ) or nitrous oxide (N 2 O) process. Bacteria involved in this process are collectively referred to as denitrifiers. Denitrifying bacteria are a kind of chemo-heterotrophic facultative anoxic microorganisms, and their reactions need to be carried out under anoxic conditions. During the reaction, denitrifying bacteria use various organic matter as electron donors and nitrate as electron acceptors. body undergoes hypoxic respiration. In the denitrification process section of biochemical treatment of wastewater, the living environment of denitrifying bacteria must ensure an appropriate carbon-nitrogen ratio as w...

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Problems solved by technology

[0003] At present, the commonly used external carbon source is relatively simple, containing only one component such as sucrose or glucose, and the microbiota is a complex collection of microorganisms in different growth stages. The supplement of a single carbon source cannot satisfy the nutrition of microorganisms at all stages. Need; at the same time, according to the water quality plus nitrogen sources, phosphorus sources, growth factors and trace elements, multiple sets of feeding equipment are required, which not only increases the floor area, but also makes maintenance very inconvenient, and non-professionals cannot master the ratio

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