Method for treating poultry farm wastewater by using chlorella and chitosan

A technology of chlorella and chitosan is applied in chemical instruments and methods, animal husbandry wastewater treatment, water/sewage multi-stage treatment, etc. Effect

Inactive Publication Date: 2016-07-13
宋维成
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sewage also contains a large number of pathogenic microorganisms that will spread through the

Method used

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Examples

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example 1

[0019] Example 1. The implementation method of the present invention will be described in detail below. This example is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided.

[0020] (1) Chlorella suspension culture

[0021] Add Na2CO3, KNO3, KH2PO4 to the wastewater to prepare a culture solution with an inorganic carbon concentration of 18mg / L, a total nitrogen concentration of 25mg / L, and a total phosphorus concentration of 2.5mg / L. Chlorella inoculum was 10%. The light-dark ratio was 12h:12h, the temperature was 25°C, and the light intensity was 4500 Lux, and the culture was cultivated for 10 days. At different times of culture, the growth of Chlorella was measured. After the cultivation, centrifuge at 4000r / min for 10min, and harvest the cells of Chlorella algae.

[0022] (2) Solid-liquid separation of sewage

[0023] Use a solid-liquid separator to separate the ...

example 2

[0028] Example 2, according to the contents of the present invention, propose specific operation steps;

[0029] (1) Chlorella suspension culture

[0030] Add Na2CO3, KNO3, KH2PO4 to waste water to prepare a culture solution with an inorganic carbon concentration of 18 mg / L, a total nitrogen concentration of 15 mg / L, and a total phosphorus concentration of 2.5 mg / L. Chlorella inoculum was 10%. The light-dark ratio was 12h:12h, the temperature was 25°C, and the light intensity was 4500 Lux, and the culture was cultivated for 10 days. At different times of culture, the growth of Chlorella was measured. After the cultivation, centrifuge at 4000r / min for 10min, and harvest the cells of Chlorella algae.

[0031] (2) Solid-liquid separation of sewage

[0032] Use a solid-liquid separator to separate the solid matter, and the separated solid is fermented to remove harmful substances and used as an organic fertilizer; the liquid is introduced into the sewage treatment tank, and the...

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PUM

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Abstract

The invention relates to the technical field of wastewater treatment, in particular to a method for treating poultry farm wastewater by using chlorella and chitosan, and is intended to provide this method, comprising: using chlorella to absorb nitrogen and phosphorus in wastewater to obtain their synthetic substances, quickly proliferating, and purifying water in the proliferating process, using chitosan to flocculate the chlorella so as to purify the water and reproduce the chlorella; first, subjecting the wastewater to solid-liquid separation, wherein the separated liquid contains a high quantity of nitrogen and phosphorus and dissatisfies the standard for wastewater discharge, allowing the separated liquid to flow into a wastewater treatment tank, adding the chlorella for wastewater purification, introducing to a chlorella collection pool, using chitosan to flocculate and collect the chlorella, reusing the treated water in farming, and applying the obtained chlorella to feed production.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a method for treating poultry farm sewage by using chlorella and chitosan. Background technique [0002] Farm sewage mainly includes urine, some feces and flushing water, which is a high-concentration organic sewage, and contains a large amount of suspended solids and ammonia nitrogen. After this untreated sewage enters the natural water body, it will increase the content of suspended solids, organic matter and microorganisms in the water, change the physical, chemical and biological community composition of the water body, and deteriorate the water quality. Sewage also contains a large number of pathogenic microorganisms that will spread through water bodies or through aquatic animals and plants, endangering the health of humans and animals. In order to achieve the organic combination of economic benefits, social benefits and environmental benefits, and to enable enter...

Claims

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Application Information

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IPC IPC(8): C02F9/14A23K1/16C02F103/20
Inventor 宋维成
Owner 宋维成
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