Method for preparing ecological bacterial fertilizer by utilizing pig manure wastewater subjected to anaerobic treatment

An anaerobic treatment, pig manure technology, applied in the direction of application, organic fertilizer, excrement fertilizer, etc., can solve the problems of limited improvement of plant growth and quality, complex wastewater treatment process, adverse effects of plant growth, etc., to avoid mutual interference and antagonism, improving yield and nutritional quality, and realizing the effect of recycling waste water

Pending Publication Date: 2020-12-18
CHINA AGRI UNIV +1
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Livestock and poultry breeding sewage is rich in organic matter and ammonia nitrogen, and contains a variety of heavy metal ions. It is easy to have adverse effects on plant growth when used directly as fertilizer.
In the prior art, the use of livestock and poultry breeding sewage to prepare ecological bacterial fertilizers usually requires the joint action of complex microbial systems composed of various anaerobic microorganism...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing ecological bacterial fertilizer by utilizing pig manure wastewater subjected to anaerobic treatment
  • Method for preparing ecological bacterial fertilizer by utilizing pig manure wastewater subjected to anaerobic treatment
  • Method for preparing ecological bacterial fertilizer by utilizing pig manure wastewater subjected to anaerobic treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Preparation and Application of Embodiment 1 Light and Bacteria Ecological Fertilizer

[0049] 1. Preparation of light and bacterial ecological fertilizer

[0050] This embodiment provides a method of using photosynthetic bacteria to prepare ecological bacterial fertilizer using the effluent of the anaerobic pool of the pig manure wastewater anaerobic-anoxic-aerobic three-stage wastewater treatment system as raw material, as follows:

[0051] The raw material of pig manure wastewater used in this example is the effluent from the anaerobic pool of the pig manure wastewater anaerobic-anoxic-aerobic three-stage wastewater treatment system, and its COD concentration is 1.58×10 3 mg / L, the total nitrogen concentration is 721mg / L; the total phosphorus concentration is 26.3mg / L.

[0052] (1) Obtaining of pig manure wastewater raw material: After the above-mentioned pig manure wastewater raw material is centrifuged to get the supernatant, the pH is adjusted to be 7.0;

[0053]...

Embodiment 2

[0071] The preparation of embodiment 2 ecological bacterial fertilizer and the influence of the application rate of different ecological bacterial fertilizers on lettuce growth and quality

[0072] 1. The present embodiment provides a method of using photosynthetic bacteria to prepare ecological bacterial fertilizer using the anaerobic pool effluent of the pig manure wastewater anaerobic-anoxic-aerobic three-stage wastewater treatment system as raw material, as follows:

[0073] The pig manure wastewater used in this example is the effluent from the anaerobic pool of the pig manure wastewater anaerobic-anoxic-aerobic three-stage wastewater treatment system, and its COD concentration is 1.50×10 3 mg / L, the total nitrogen concentration is 744mg / L; the total phosphorus concentration is 31.8mg / L.

[0074] (1) Obtaining of pig manure wastewater raw material: After the above-mentioned pig manure wastewater raw material is centrifuged to get the supernatant, the pH is adjusted to be ...

Embodiment 3

[0084] Embodiment 3 utilizes different photosynthetic bacteria to prepare ecological bacterial fertilizer

[0085] 1. This embodiment provides a method for preparing ecological bacterial fertilizer using photosynthetic bacteria using the effluent of the anaerobic pool of the pig manure wastewater anaerobic-anoxic-aerobic three-stage wastewater treatment system as raw material. The difference from Example 1 is that Different combinations of photosynthetic bacteria were used.

[0086] The pig manure wastewater raw material used in this example is the effluent from the anaerobic pool of the pig manure wastewater anaerobic-anoxic-aerobic three-stage wastewater treatment system, and its COD concentration is 1.61×10 3 mg / L, the total nitrogen concentration is 754mg / L; the total phosphorus concentration is 33.2mg / L.

[0087] (1) Obtaining of pig manure wastewater raw material: After the above-mentioned pig manure wastewater raw material is centrifuged to get the supernatant, the pH ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of wastewater treatment and plant planting, in particular to a method for preparing an ecological bacterial fertilizer from pig manure wastewater subjectedto anaerobic treatment. According to the method for preparing the ecological bacterial fertilizer by using the pig manure wastewater, provided by the invention, anaerobic tank effluent of an anaerobic-anoxic-aerobic three-stage wastewater treatment system of the pig manure wastewater is used as a raw material, and photosynthetic bacteria rhodopseudomonas palustris, rhodobacter capsulatus and rhodobacter sphaeroides are used for culturing and preparing the ecological bacterial fertilizer. The ecological bacterial fertilizer can be prepared from pig manure wastewater in an anaerobic tank through one-time culture by compounding use of the same kind of bacteria, the degradation efficiency of organic matters, ammonia nitrogen and toxic and harmful substances in the wastewater is remarkably improved, and the method has the advantages of simple strain preparation and wastewater treatment processes, low cost and the like; the prepared ecological bacterial fertilizer is rich in various nutrient elements and photosynthetic bacteria, can significantly improve the metabolic activity of plant growth, photosynthesis and the like, enhances the soil fertility, and effectively improves the yield and quality of plants.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment and plant planting, in particular to a method for preparing ecological bacterial fertilizer by using photosynthetic bacteria using anaerobically treated wastewater in the pig manure wastewater treatment process as a raw material. Background technique [0002] Since Japanese scientist M. Kobayashi and others discovered that photosynthetic bacteria (PSB) can purify water in the 1960s, photosynthetic bacteria have always been concerned by people. Photosynthetic bacteria are widely distributed in oceans, rivers, lakes and soils. Rhodobacter Sphaeroides, as the most widely used photosynthetic bacterial strain, is widely used in the treatment of soybean processing wastewater, sugar factory wastewater, light industrial wastewater, livestock and poultry wastewater, and the removal rate of COD can reach 70%-90%. Some extracts from photosynthetic bacteria obtained after wastewater treatment pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C05F3/00
CPCC05F3/00Y02A40/20
Inventor 卢海凤张欢何仕超沈自泉孟涛刘金辉张源辉李保明
Owner CHINA AGRI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap