Novel rural sewage flocculent precipitate sterilizing agent and application thereof

A technology for rural sewage and bactericide, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. Problems such as function, difficult biological filter treatment, etc.

Active Publication Date: 2014-05-28
JIANGSU SHANGDA WATER AFFAIR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In March and April 2013, a large number of dead pigs floated on the river surface in Jiaxing and other places, causing large areas of corruption pollution in the river. Although the local people organized fishermen to salvage dead pigs to reduce pollution, the water pollution caused by it has become a reality and needs to be solved urgently. More attention should be paid to how to remove animal hormones and antibiotics in the water quality due to the problems of pig breeding
[0007] Biological filter, that is, microbial filtration technology. This technology uses the growth of microorganisms to attach to the filter carrier to produce a biological filter membrane for sewage treatment. It consists of two parts: enriched microorganisms and filler carriers. However, the technology is not easy to master when using it, and small and medium-sized farms lack Technical personnel in this field, but in some closed waters such as ponds in rural areas, it is even more difficult to realize such biological filter treatment, and it is difficult to be promoted, and the cost of outsourcing environmental protection problems is relatively high
[0008] Constructed wetland sewage purification technology, natural wetland is an important transitional ecosystem between terrestrial and aquatic environments, not only providing habitat and breeding places for various wetland organisms, but also regulating the natural climate, but artificial wetlands It is a unique soil plant microbial ecosystem composed of artificial substrate and aquatic plant microorganisms growing on it. It combines the physical, chemical and biological triple functions in the natural ecosystem, and filters, adsorbs and precipitates through artificial substrate plants and microorganisms. Ion exchange conversion and decomposition to achieve efficient purification of sewage Constructed wetlands can effectively remove nutrients such as nitrogen, phosphorus, and BOD / COD in water, and are suitable for aquaculture wastewater treatment, but this technology is slow to take effect, and the constructed wetlands have unstable removal effects on sewage properties, and the application in northern my country is limited by the cold and arid climate
[0009] The sewage flocculants currently available on the market generally do not combine the bactericidal effect, and the bactericides generally do not undertake the function of sewage flocculation and sedimentation, which is also the problem to be solved by the present invention

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1 Rural sewage flocculation sedimentation fungicide

[0041] Preparation of raw materials:

[0042] Beech leaf extract, including leaf veins and meridians and dried filtrate, collected thick leaves of beech mesophyll, crushed into small pieces of about 2mm×2mm, soaked in 0.3mol / l hydroxide at 40 degrees Celsius for 100g In 200ml of sodium and 300ml of 0.2mol / l sodium carbonate, after 20 minutes, add 0.5mol / l titrated hydrochloric acid to neutralize, use a 10-mesh filter to filter out the meridian part of the beech leaves, and dry it for later use; after filtering, the solution is evaporated Dish is evaporated to dryness, obtains the active ingredient of beech leaf flocculation, arranges and sets aside. Chlamydomonas is dried and dehydrated so that its water content is controlled at 20-30%.

[0043] The flocculant consists of two parts

[0044] The main components of A flocculation package (weight ratio):

[0045] Beech leaf meridian fiber: 40%

[0046] Beec...

Embodiment 2

[0056] Example 2 Rural sewage flocculation sedimentation fungicide

[0057] Raw material is prepared with embodiment 1

[0058] Beech leaf meridian fiber: 60%

[0059] Beech Leaf Extract: 8%

[0060] Sterile Chlamydomonas: 9%

[0061] Chitosan: 0.4%

[0062] 30 mesh iron powder (including 50% ferrous sulfate): 22.6%

[0063] Mix well and put into bags.

[0064] B flocculation package main components (weight ratio)

[0065] Calcium hypochlorite (commercially available bleaching powder): 2% (into the dosing device)

[0066] 10 mesh activated carbon (columnar activated bamboo charcoal): 98%

[0067] Mix well and put into bags.

Embodiment 3

[0068] Example 3 Application of Rural Sewage Flocculation and Precipitation Bactericide

[0069] Using the formula in Example 1, after the A flocculation bag is used to flocculate and precipitate the polluted water, the pH value of the water is detected by the detection device installed in the sewage effluent. If the pH is <8.5, the B flocculation bag is added to start the calcium hypochlorite ) dosing device;

[0070] A flocculation bag and B flocculation bag are sealed and packaged separately. When in use, the flocculation bags are mixed and flocculated. The A and B flocculation bags are respectively immersed in water, and the distance between the two bags is 0.2-0.5 meters, so that they can slowly dissolve and react, and electrochemically react.

[0071] The method adopted in the present invention can significantly reduce the dosage of the chlorine-containing bactericide or improve the disinfection effect of the chlorine-containing bactericide through combined use. Adjusti...

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PUM

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Abstract

The invention discloses a novel rural sewage flocculent precipitate sterilizing agent which comprises two flocculation packages, wherein the flocculation package A mainly comprises the following components by weight percent: 40 percent of zelkova schneideriana leaf meridian fiber, 10 percent of zelkova schneideriana leaf extract, 10 percent of sterile chlamydomonas, 0.1 percent of chitosan and 29 percent of 30-mesh iron powder of which the ferrous sulfate content is 50 percent, and the components are uniformly mixed and stirred and are packaged into a bag; and the flocculation package B mainly comprises the components by weight percent: 2 percent of calcium hypochlorite and 98 percent of 10-mesh activated carbon (columnar activated bamboo charcoal) which are added into a feeding device. According to the sewage flocculent precipitate sterilizing agent, the amount of chlorine-containing sterilizing agent can be obviously reduced or the sterilizing effect of the chlorine-containing sterilizing agent is improved. The sterilizing agent is adjusted according to the effluent pH value of a secondary sedimentation tank, the amount of the chlorine-containing sterilizing agent can be reduced or the sterilizing efficiency of the system can be improved, the effluent microbes are less than or equal to 104 per liter, and the emission standard is reached.

Description

technical field [0001] The invention relates to a flocculant, in particular to a flocculation-sedimentation fungicide, which belongs to the sewage treatment technology in the field of environmental protection. Background technique [0002] In March and April 2013, a large number of dead pigs floated on the river surface in Jiaxing and other places, causing large areas of corruption pollution in the river. Although the local people organized fishermen to salvage dead pigs to reduce pollution, the water pollution caused by it has become a reality and needs to be solved urgently. More attention should be paid to how to remove the animal hormones and antibiotics in the water quality due to the problems of pig breeding. [0003] Recently, due to various reasons such as bird flu, a large number of dead chickens and ducks appeared in the river, causing pollution. Although the source of pollution has been removed by salvage, the deteriorating water quality is easy to accumulate with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/06C02F1/52
Inventor 徐卫东顾杨倪丹丁青松
Owner JIANGSU SHANGDA WATER AFFAIR
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