Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for producing biological modified carbonize stalk

A technology of carbonizing straw and biomodification, which is applied in the field of water treatment, can solve problems such as sewage pollution, and achieve the effects of wide application prospects, good effluent quality, and long service life

Inactive Publication Date: 2011-01-26
江苏明睿科技实业有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiencies of the existing technology, the purpose of the present invention is to provide a biological modification that can effectively dispose of a large amount of waste carbonized straw, and at the same time use it to solve the problem of rural domestic sewage pollution, and finally achieve the effect of "treating waste with waste". Preparation method of carbonized straw

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0016] The preparation method of biologically modified carbonized straw of the present invention firstly processes the carbonized straw, and selects waste carbonized straw after gasification of rural straw and carbonized straw produced by a straw gasification power plant, which saves costs and makes waste resources here get used. Air-dry the selected carbonized straw at room temperature, and then sieve through a 2mm sieve to remove impurities. Then screening microorganisms, in order to carry out effective treatment to various pollution sources, the microbial species of screening of the present invention comprises: grease degrading bacteria, starch degrading bacteria, protein degrading bacteria, cellulose degrading bacteria, chitin degrading bacteria, phosphorus accumulating bacteria and ammonia nitrogen degrading bacteria, etc. Finally, the screened microorganisms are fixed into the carbonized straw by dry fermentation method to obtain the biomodified carbonized straw.

[00...

Embodiment 1

[0018] Example 1: Screening of microorganisms. Oil-degrading bacteria were isolated from the soil near the coking plant of Nanjing Iron and Steel Group; starch-degrading bacteria were mainly Bacillus subtilis and Lactobacillus isolated in our laboratory; protein-degrading bacteria were isolated from sewage sludge from a pork stall in a vegetable market in Nanjing; cellulose degrading Bacteria were isolated from semi-decomposed bamboo leaf samples in the litter layer of Zijinshan bamboo forest in Nanjing; chitin-degrading bacteria were isolated from vegetable garden soil containing a large number of crushed lobster shells; phosphorus-accumulating bacteria and ammonia-nitrogen-degrading bacteria were isolated from active sewage of sewage treatment plants mud. Mixing the above microorganisms to treat the domestic sewage in the small river near Nanjing Agricultural University can effectively reduce the content of COD, ammonia nitrogen and phosphorus.

Embodiment 2

[0019] Example 2: Growth of microorganisms in bio-modified carbonized straw produced by dry fermentation. A certain amount of carbonized straw was sterilized under high temperature at 121°C, and then inoculated into the screened pure phosphorus-accumulating bacteria, which was subjected to dry fermentation at 28.4°C. The growth of phosphorus-accumulating bacteria in carbonized straw is shown in Table 1 .

[0020] Table 1. Growth of phosphorus accumulating bacteria in carbonized straw

[0021] time (h)

[0022] Number of bacteria / g carbonized straw

[0023] Among them, the number of starting to insert phosphorus accumulating bacteria is 10 2 , when the number of phosphorus accumulating bacteria reaches 10 at 60h 11 , the growth of phosphorus accumulating bacteria on the carbonized straw is better during the whole fermentation process, which proves that the phosphorus accumulating bacteria can survive and reproduce in the carbonized straw, and there are abu...

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 a preparation method of biologically modified carbonized straw. Abandoned carbonized straws after the gasification of straws from villages and the carbonized straw generated by a straws gasification power plant are selected and dried by air at room temperature; then the straws are screened by a 2mm sieve to remove impurities; proper microbes are selected; finally the microbes are fixed on the carbonized straws by a dry-fermentation method to obtain the biologically modified carbonized straws. The dry-fermentation method is as follows: at first, high temperature sterilizing is carried out on the carbonized straws; then the carbonized straws are inoculated with the screened microbes to lead the straws to carry out dry fermentation at the temperature of 28.4 DEG C; the microbes are fixed on the carbonized straws; and finally the temperature is returned to the room temperature. In the biologically modified carbonized straws manufactured according to the invention,not only the carbonized straws can absorb the pollution source, but also the microbes can degrade the pollution source; the domestic sewage treated by co-action of physical absorption and biological degradation features longer hours of use, good water quality and low cost. The carbonized straws after the absorption can be applied to the farmland as fertilizers, thus being used.

Description

technical field [0001] The invention relates to a sewage treatment technology, in particular to a preparation method of biologically modified carbonized straw, which belongs to the technical field of water treatment. Background technique [0002] At present, rural domestic sewage is one of the causes of rural water environment pollution, and it is also an important factor causing eutrophication of rivers and lakes. It has become an important source of water pollution in rural areas. Therefore, it is imminent to improve the rural domestic sewage treatment capacity. [0003] At present, the current water treatment technologies or processes are mostly related to the action of microorganisms, and finding suitable fillers for the growth of microorganisms is crucial to the final treatment effect. At present, biological activated carbon is widely used in domestic and foreign water treatment technologies and processes (biological filter, biological filter tower, etc.). Way. That ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C12N11/14C02F3/34C02F3/10
CPCY02W10/10
Inventor 代静玉胡林潮张慧龙萍张激峰朱效松
Owner 江苏明睿科技实业有限公司