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Composite microbial flocculant and application thereof

A composite bacterial agent and water body restoration technology, applied in the field of water treatment, can solve the problems of palliative, non-eradication, secondary pollution, etc., achieve efficient repair, reduce water pollution load, and have remarkable deodorizing effect

Inactive Publication Date: 2015-05-20
李捍东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The advantage of the physical method is quick effect, but the investment is large, and the symptoms are not cured; the chemical method is effective, but it cannot be eradicated and is prone to secondary pollution

Method used

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  • Composite microbial flocculant and application thereof
  • Composite microbial flocculant and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Composite microbial flocculant

[0036] Saccharomyces (disclosed in deposit number CGMCC No.3278CN101748091), Rhodococcus (disclosed in deposit number CGMCC No.3276CN101748091), Pseudomonas alcaligenes (Pseudomonas alcaligenes) ( Deposit number CGMCC No3902). After they removed COD respectively 76.5%, 88.1%, 75.8%, and the combination of three strains, the treatment effect was 91.2%. %.

[0037] The composite bacterial agent that combines the above three strains of bacteria to treat eutrophication, black and odorous water bodies is a composite microbial flocculant for the treatment of black eutrophication and odorous river water. The proportions of the three deodorizing dominant bacteria of Saccharomyces, Rhodococcus and Pseudomonas alcaligenes in the compound bacterial agent are 1:1:1 respectively.

[0038] Composite flocculant culture medium: yeast extract 5g / L, beef extract 3g / L, peptone 10g / L, MgSO 4 ·7H 2 O3g / L, KCl 2g / L, NaCl 5g / L, pH 7.0; 25-35°C.

[00...

Embodiment 2

[0045] Example 2. Water bloom prevention and control projects in Zhuanhe River (including Taiping Lake) and North Moat (Songlin Gate—Paper Mill Ship Lock)

[0046] On July 15, August 16, and September 20, 2014, the composite biological flocculant was added to the North Moat three times, each time the dosage was 2.5 tons, 1 ton, and 1 ton respectively. COD is reduced from 50-70mg / L to ≤20-30mg / L, and transparency is increased from 10cm to over 60cm. TN dropped from 8-11mg / L to 1.2-3.3mg / L. The water body has been able to maintain this level for a long time since July 15, and there has been no algal bloom.

Embodiment 3

[0047] Example 3, Nanxi River Black and Odor Water Treatment Project in Yaozhuang Town, Jiashan County, Zhejiang Province

[0048] The Nanxi River in Jiashan County, Zhejiang Province was seriously polluted due to the impact of wastewater and waste residues discharged from nearby poultry and pig breeding, as well as domestic garbage and sewage discharges from residents. It is a veritable black and smelly river and garbage river.

[0049] On July 28, 2014, a compound microbial flocculant was added to the 800-meter-long section of the Nanxi River. The dosage was 1,000 kg. After 3 days of adding, the water quality improved significantly, and the COD dropped from 240mg / L to ≤40mg / L L, transparency increased by 10cm by 60cm. TN dropped from 14.9mg / L to 6.5mg / L. This section of the river is still able to maintain this level for a long time.

[0050] Take Nanxi River water in Yaozhuang Town, Jiaxing, Zhejiang Province as an example: the COD in the water before treatment was 240mg / ...

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Abstract

The invention relates to the field of water treatment, particularly a composite microbial flocculant and application thereof. The composite microbial inoculant comprises the following deodorizing dominant strains: Saccharomyces (the collection number is CGMCC No.3278), Rhodococcus (the collection number is CGMCC No.3276), and Pseudomonas alcaligenes (the collection number is CGMCC No.3902). When the composite microbial flocculant is applied to the existing aeration-oxygenation technique / microbial restoration technique / artificial wetland restoration technique combined biological restoration treatment process by adding the composite microbial flocculant according to the new development and research technique to the microbial restoration technique, the microbial restoration efficiency is greatly enhanced, and the cracked biologic chain water body is quickly and stably restored, thereby well solving the practical problems.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a composite microbial flocculant and its application. Background technique [0002] A large amount of industrial wastewater, agricultural wastewater and domestic sewage are discharged into the water body, resulting in eutrophication of the water body. In severe cases, the river water becomes black and smelly. The treatment of this kind of water pollution mainly adopts physical method, chemical method and biological method at present. The advantage of the physical method is quick effect, but the investment is large, and the symptoms are not cured; the chemical method is effective, but it cannot be eradicated and is prone to secondary pollution. The ecological method in biology can gradually restore the broken biological chain, so that the local ecosystem will gradually become stable from the current fragility. [0003] In order to make the "combined bioremediation treatment proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C12N1/16C02F3/34C12R1/85C12R1/38C12R1/01
CPCC02F3/347C12N1/16C12N1/20Y02A40/22
Inventor 李捍东
Owner 李捍东
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