Organism activated adsorption aeration sewage treating and water reusing method

A biological activation and sewage treatment technology, applied in the field of environmental protection, can solve the problems of failure to achieve the goal of domestic sewage reuse and high operating costs, and achieve the effects of reducing daily maintenance costs, optimizing design layout, and low prices

Active Publication Date: 2008-05-28
SOUTH CHINA UNIV OF TECH +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the relatively high lipids, carbohydrates, ammonia nitrogen, detergents, etc. in domestic sewage, the current landscape water treatment technology cannot achieve the goal of domestic sewage reuse, or the sewage can meet the standard reuse, but the operating cost is high

Method used

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  • Organism activated adsorption aeration sewage treating and water reusing method

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Comparison scheme
Effect test

Embodiment 1

[0031] (1) Anaerobic treatment with bioactivator

[0032] Three days before the start-up of the biologically activated adsorption aerated sewage treatment system, a bioactivator with a total concentration of 50 mg / L was added to the anaerobic tank 3 in the form of uniform spraying in water, once a day, and it was not necessary to add during normal operation. Daily input amount of bioactivator (M) According to empirical formula M=40-0.78×COD(g / m 3 )calculate. The bioactivator is composed of enzyme preparation, trace elements, amino acid and polysaccharide. Enzyme preparations account for 80% of the total, including 50% protease, 40% lipase and 10% cellulase. Trace elements account for 10% of the total, and trace elements are copper, zinc, manganese and cobalt. Amino acids and polysaccharides account for 10% of the total. The ratio of amino acids to polysaccharides is 1:2. Amino acids and polysaccharides are derived from food waste. The amino acids are glutamic acid and pheny...

Embodiment 2

[0041] (1) Anaerobic treatment with bioactivator

[0042] Three days before the start-up of the sewage treatment system with bioactivation adsorption aeration, the bioactivator with a total concentration of 60mg / L was added to the anaerobic pool 3 in the form of uniform spraying in water, once a day, and it was not necessary to add during normal operation. Daily input amount of bioactivator (M) According to empirical formula M=38-0.8×COD(g / m 3 )calculate. The bioactivator is composed of enzyme preparation, trace elements, amino acid and polysaccharide. Enzyme preparations account for 75% of the total, including 50% protease, 40% lipase, and 10% cellulase; trace elements account for 10% of the total, and trace elements are copper, zinc, manganese, cobalt and molybdenum; amino acids and polysaccharides Accounting for 15% of the total, the ratio of amino acid to polysaccharide is 2:3. Amino acid and polysaccharide come from food waste, amino acid is phenylalanine, and polysacch...

Embodiment 3

[0051] (1) Anaerobic treatment with bioactivator

[0052] Five days before the bioactivation adsorption aeration sewage treatment system is started, the bioactivator with a total concentration of 80mg / L is added to the anaerobic tank 3 by uniform spraying in water, once a day, and it is not necessary to add during normal operation. Daily input amount of bioactivator (M) according to empirical formula M=45-1.8×COD(g / m 3 )calculate. The bioactivator is composed of enzyme preparation, trace elements, amino acid and polysaccharide. Enzyme preparations account for 80% of the total, of which protease 40%, lipase 40%, cellulase 20%; trace elements account for 10% of the total, trace elements include copper, zinc, manganese; amino acids and polysaccharides account for the total 10%, the ratio of amino acid to polysaccharide is 3:4, amino acid and polysaccharide come from food waste, amino acid is glutamic acid, polysaccharide is lactose. The above-mentioned contents are all percent...

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Abstract

The invention provides the sewage treatment and water recycling method of a biological activation adsorption aeration. The method adopts the sewage treatment system of the biological activation adsorption aeration which is added with bio-activator and processed by anaerobic treatment to process sewage. The sewage treatment method has low operation cost, small area occupancy, producing no residual sludge, simple operation and maintenance, requiring no complex equipment construction, easy promotion and application, and is a feasible high efficiency and low consumption technique for water treatment and recycling and for preventing the eutrophication of landscape waters. The method is applicable to recycling domestic sewage in residential communities and the environment restoration and ecological management of closed or semi-closed landscape waters, and has broad application prospect. Polluted water processed by the method has the removal rate of BOD5 as high as 73.1 percent, the removal rate of COD as high as 85.6 percent, the removal rate of ammonia nitrogen as high as 96 percent, the removal rate of total phosphorus as high as 98 percent and dissolved oxygen more than 4.5 mg / L.

Description

technical field [0001] The invention relates to the sewage treatment technology in the field of environmental protection, in particular to the treatment and reuse technology of slightly polluted water bodies and domestic sewage. Background technique [0002] With the improvement of people's living standards, the requirements for the living environment are getting higher and higher, and the slightly polluted water bodies such as garden water bodies and residential quarter landscape water bodies are not in place due to management and maintenance, which affects people's normal life. At present, most landscape water and landscape water in residential quarters do not have water body purification treatment facilities. They are generally closed or semi-closed water bodies. After a period of operation, algae are easy to breed, and the water body turns green, even black and smelly, and eutrophication occurs. Some landscape water bodies are directly polluted by exogenous pollutants (s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
Inventor 黄少斌蒋然蔡焯基郭永峰涂善忠
Owner SOUTH CHINA UNIV OF TECH
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