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Preparation method and application of microecological preparation

A micro-ecological preparation and micro-ecological technology, applied in the field of water treatment, can solve problems such as water quality deterioration, and achieve the effects of improving water quality, strong ability to adapt to the environment, and large cell adsorption capacity

Inactive Publication Date: 2016-02-24
南通河海大学海洋与近海工程研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: Aiming at water pollution caused by aquaculture sewage discharge and water quality deterioration caused by silt in aquaculture ponds, a microecological preparation is proposed by combining microbial fermentation compounding technology and nanotechnology, which can effectively Remove nitrogen, phosphorus, COD and other pollutants in aquaculture sewage, and have a significant effect on sediment dredging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] EM stoste, molasses and deionized water are mixed by volume percentage of 5%: 5%: 90%, and it is moved in the reaction flask, under airtight condition, put into constant temperature incubator and ferment for 7 days, set fermentation temperature to be 37 ℃, the shaking table speed is 180r / min, and the EM rejuvenation liquid is prepared; then, it is mixed and dissolved according to the weight ratio of PAC solid: deionized water=1:10, and the PAC flocculant is made, and the EM rejuvenation liquid and the PAC flocculant are prepared according to the : 0.6 volume ratio compound, and it was transferred to the reaction bottle for fermentation for 3 days to make EM-PAC compound solution. Diatomite is ground and sieved, and 45 mL of sulfuric acid with a mass concentration of 12.3% is added to 100 g of diatomite to activate the diatomite. The activation time is 3 days, and the activated diatomite and nano-SiO 2 and kaolin were washed with deionized water, mixed evenly at a mass r...

Embodiment 2

[0033]EM stock solution, molasses and deionized water are mixed at a volume percentage of 5%: 5%: 90%, and moved into the reaction flask, and placed in a constant temperature incubator for fermentation under airtight conditions For 8 days, the fermentation temperature was set to be 37°C, and the rotating speed of the shaking table was 180r / min to prepare EM rejuvenating liquid, and then mixed and dissolved by PAC solid: deionized water=1:15 weight ratio to make PAC flocculant, and EM The rejuvenation liquid and PAC flocculant were compounded according to the volume ratio of 2:0.6, and transferred to the reaction bottle to ferment for 3 days to make EM-PAC compound liquid. Diatomite is ground and sieved, and 45 mL of sulfuric acid with a mass concentration of 12.3% is added to 100 g of diatomite to activate the diatomite. The activation time is 3 days, and the activated diatomite and nano-SiO 2 and kaolin were washed with deionized water, mixed evenly according to the mass rati...

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Abstract

The invention discloses a preparation method and application of a microecological preparation. The EM compounded chemical flocculant technology and the nanotechnology are combined, rejuvenated EM microbial liquid and inorganic polymeric flocculant PAC are compounded, compounded liquid is fixed to porous carriers made of activated kieselguhr, nanometer SiO<2>, kaolin and the like, and the microecological preparation which is used for purifying aquaculture sewage and cleaning pond silt is prepared and obtained. The preparation method comprises the following specific steps: 1, preparation of EM rejuvenating liquid; 2, preparation of the flocculant PAC; 3, preparation of the compounded liquid EM`PAC; 4, preparation of the spherical carriers; 5, preparation of the microecological preparation. The microecological preparation prepared through the preparation method is high in biological activity, good in effect of adsorbing and flocculating suspended solids in aquaculture sewage, remarkable in effect of removing ammonia nitrogen, total phosphorus, COD and the like in the sewage and capable of effectively clearing away pond silt.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a microecological preparation product for purifying aquaculture sewage and removing pond silt. Background technique: [0002] In some slow-flowing water bodies in rural areas, such as aquaculture ponds, due to feed residues and excrement of fish, shrimp, and crabs, the organic sediment of the water body is seriously silted up, and the release of pollutants in the sediment will lead to secondary pollution of the water body. It is particularly important and urgent to use environmentally friendly and low-cost ecological methods to purify aquaculture sewage and eliminate silt in slow-flowing water bodies, which is of great significance for preventing and controlling agricultural environmental pollution and protecting the ecological environment of water bodies. [0003] At present, there have been many reports on water treatment using immobilized microbial technology at home a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
CPCB01J20/103B01J20/12B01J20/14B01J2220/42C02F1/5245C02F3/34C02F3/347C02F2103/007C02F2305/08
Inventor 邵孝侯王良恺张宇杰徐达灵邵雅璐常婷婷毛欣宇陈立华
Owner 南通河海大学海洋与近海工程研究院
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