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Complex enzyme preparation for sewage treatment and application method thereof

A compound enzyme preparation and sewage treatment technology, which is applied in the field of environmental treatment, can solve the problems of insufficient microbial decomposition ability in sewage plants, difficulties in sludge harmless treatment, expansion of land acquisition and financial difficulties, etc., to shorten the residence time of sewage and run And simple operation, the effect of solving secondary pollution

Inactive Publication Date: 2011-12-28
麦广鸿 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the main problems in the operation of the sewage plant are as follows: the quality of the effluent is unstable, and the impact resistance is poor; the operating cost is high; the effluent needs to be sterilized by ultraviolet light or liquid chlorine, or other methods, so that the water body is lost due to the death of microorganisms Self-purification ability; the harmless treatment of sludge is difficult and the cost is high; the system is overloaded, and there are difficulties in land acquisition and capital expansion
To sum up all kinds of problems, the root cause is that the microorganisms in the sewage plant have insufficient decomposition ability, and can only transfer nutrients from liquid to solid to realize solid-liquid separation, but cannot completely decompose nutrients

Method used

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  • Complex enzyme preparation for sewage treatment and application method thereof
  • Complex enzyme preparation for sewage treatment and application method thereof
  • Complex enzyme preparation for sewage treatment and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] A compound enzyme preparation for sewage treatment, said compound enzyme preparation is formed by mixing compound enzyme and mineral water, and the weight ratio of compound enzyme to mineral water is 1:9;

[0116] Described mineral water contains the trace element of following volume content:

[0117] Silicon 0.2ug / L;

[0118] Sodium 74mg / L;

[0119] Calcium 71mg / L;

[0120] Magnesium 200mg / L;

[0121] Potassium 69mg / L;

[0122] Iodine 9ug / L;

[0123] Selenium 0.5ug / L;

[0124] Iron 0.4ug / L.

[0125] The compound enzyme is made up of the following components by volume:

[0126] Bromelain 65mg / L;

[0127] Papain 70mg / L;

[0128] L-aspartase 25mg / L;

[0129] Glutathione 23mg / L;

[0130] Yeast extract 120mg / L;

[0131] Cellulase 70mg / L;

[0132] Glutamic acid 35mg / L;

[0133] Aspartic acid 15mg / L;

[0134] Inulin 20mg / L;

[0135] Pyruvate 21mg / L;

[0136] Lysozyme 16mg / L;

[0137] Glucose 6-phosphate 14mg / L;

[0138] 5-phosphate decarboxylase 13mg / L;

...

Embodiment 2

[0150] Change the compound enzyme ratio to: pineapple enzyme 60mg / L; papain 75mg / L; L-aspartase 18mg / L; glutathione 26mg / L; yeast extract 110mg / L; cellulase 70mg / L; The weight ratio of compound enzyme and mineral water is 1: 19; Others are with embodiment 1.

[0151] The composite enzyme preparation of the present invention is used to treat the excess sludge of a sewage treatment plant in a certain garden (residential area), the water volume in winter: 1000t / day, and the summer water volume: 1600t / day, with an average of about 19t of sludge per day. After 12 weeks, the residual sludge The amount is 0.

Embodiment 3

[0153] Change the compound enzyme ratio as follows: pineapple enzyme 65mg / L; papain enzyme 75mg / L; L-aspartase 25mg / L; glutathione 25mg / L; yeast extract 120mg / L; cellulase 70mg / L; Glutamic acid 45mg / L; Aspartic acid 15mg / L; Inulin 25mg / L; Pyruvate 25mg / L. The weight ratio of compound enzyme and mineral water is 1: 29; Others are with embodiment 1.

[0154] The composite enzyme preparation of the present invention is used to treat the printing and dyeing sewage of an enterprise, which is mainly engaged in the dyeing and finishing of cotton chemical fiber and its deep processing. , SS is 100-200mg / L, and the chromaticity is 100-400 times. With the change of processed products, the quality of wastewater varies greatly.

[0155] The sewage treatment system of the enterprise consists of a three-stage treatment system:

[0156] Primary treatment: regulating pool + air flotation;

[0157] Secondary treatment: anaerobic hydrolysis (HRT4h) + tertiary contact oxidation (HRT7.6h); ...

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Abstract

The invention relates to a complex enzyme preparation for sewage treatment. The complex enzyme preparation is compounded by mixing complex enzyme and mineral water, wherein the weight ratio of the complex enzyme to the mineral water is 1:9-50; and the complex enzyme contains the following components in volume content: 50 to 80 mg / L of bromelain, 50 to 80 mg / L of papain, 15 to 30 mg / L of L-aspartase, 15 to 30 mg / L of glutathione, 100 to 150 mg / L of yeast extract and 50 to 80 mg / L of cellulose. The complex enzyme preparation improves the treatment capability of a sewage plant, reduces the running cost, basically achieves zero release of residual organic sludge, prevents environmental secondary pollution of the sewage treatment, improves the self-purification capability of yielding water of the sewage plant, prevents secondary pollution of the yielding water, prevents secondary eutrophication of the yielding water, and radically solves the problem of environmental protection in operationof the sewage treatment plant.

Description

(1) Technical field [0001] The invention belongs to the field of environmental treatment, and in particular relates to a composite enzyme preparation for sewage treatment and an application method thereof. (2) Background technology [0002] At present, the main problems in the operation of the sewage plant are as follows: the quality of the effluent is unstable and the impact resistance is poor; the operating cost is high; the effluent needs to be sterilized by ultraviolet light or liquid chlorine, or other methods, so that the water body is lost due to the death of microorganisms Self-purification ability; the harmless treatment of sludge is difficult, and the cost is high; the system is overloaded, and there are difficulties in land acquisition and capital expansion. To sum up all kinds of problems, the fundamental reason is that the microorganisms in the sewage plant have insufficient decomposition ability, and can only transfer nutrients from liquid to solid to realize s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N9/50C02F3/30
Inventor 麦广鸿郑丽军彭韬马丹陈雯
Owner 麦广鸿
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