Wastewater biochemical treatment denitrifying microorganism compound nutrition agent

A denitrifying microorganism and biochemical treatment technology, which is applied in the field of denitrifying microbial compound nutritional preparations for wastewater biochemical treatment, can solve the problems of inconvenient maintenance, single additional carbon source, and increased floor area, so as to reduce maintenance costs and technology Difficulty, the effect of increasing the footprint

Inactive Publication Date: 2018-07-03
广州市真诚环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Wastewater biochemical treatment denitrifying microorganism compound nutrition agent
  • Wastewater biochemical treatment denitrifying microorganism compound nutrition agent

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0028] Example 1:

[0029] Wastewater biochemical treatment microbial complex nutrient solution, consisting of the following raw materials by weight: 19% glucose, 32% sucrose, 15% starch, 10% sodium acetate, 8% nitrogen nutrient, 6% phosphorus nutrient , 4% alkalinity regulator, 2% amino acid, 1% vitamin, 1% protease, 2% trace element additive.

Example Embodiment

[0030] Example 2:

[0031] Wastewater biochemical treatment microbial complex nutrient solution, consisting of the following raw materials by weight: 12% glucose, 33% sucrose, 23% starch, 6% sodium acetate, 12% nitrogen nutrient, 7% phosphorus nutrient , 2% alkalinity regulator, 2% amino acid, 1% vitamin, 1% protease, 1% trace element additive.

Example Embodiment

[0032] Example 3:

[0033] A sewage treatment plant in Huangpu District, Guangzhou (circuit board industrial wastewater), the influent CODcr of the wastewater biochemical treatment system is 328-389mg / L, the total nitrogen is TN18-34mg / L, and the pH is 6.8-7.3. There are two parallel sewage treatment systems in the factory, each with a water treatment capacity of 1100 tons / day.

[0034] Control group: the nutrient solution is 20% by weight glucose-water solution;

[0035] Experimental group: dissolve the formula of Example 1 into a 20% by weight aqueous solution;

[0036] The dosage of nutrient solution in each sewage treatment system is 30 kg / day. After 21 days of culture operation, the total nitrogen removal effect of the control group is not good, and the removal rate of COD is not very good. The effluent COD is 102-115mg / L, the total nitrogen is 11-16mg / L; while the experimental group after 21 days of operation, the effluent COD is about 69-92mg / L, and the total nitroge...

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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...

Claims

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Application Information

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IPC IPC(8): C02F3/34
CPCC02F3/34C02F2305/06
Inventor 庞红波
Owner 广州市真诚环保科技股份有限公司
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