A method for the treatment of high-ammonia-nitrogen wastewater through nutrient conversion of concurrently trophic microorganisms
A technology that simultaneously supports microorganisms and high ammonia nitrogen, and is applied in the field of high ammonia nitrogen wastewater treatment. It can solve problems such as ammonia air pollution, achieve low cost, reduce costs, and meet the effects of large-scale industrial wastewater treatment.
Active Publication Date: 2019-01-11
NANCHANG UNIV
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in the above-mentioned systems, the ammonia nitrogen adsorbed and absorbed by the microalgae cells usually only accounts for a small part of the microalgae treatment system, and a large amount of ammonia escapes into the atmosphere, which will cause potential air pollution.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0032] High ammonia nitrogen tolerant algae strains - local screening of Chlorella sorokiniana, the algae strains can not only grow autotrophically in photosynthesis, but also grow heterotrophically under dark conditions, and can also grow polytrophically under the above conditions at the same time . From figure 2 It can be seen that this Chlorella is a circular eukaryotic acultivating microorganism with a cell size of 2 to 5 μm. Its growth characteristics under autotrophic, heterotrophic and mixed culture are as follows: Figure 1a , 1b shown.
[0033] Figure 1a Represents the growth curve of Chlorella in autotrophic and mixed culture media, P represents autotrophic culture, M represents mixed culture, M1-M50 represents the organic carbon concentration in mixed culture (ie, the initial reducing sugar concentration of organic carbon) . From Figure 1a It can be seen that the biomass of polyculture cells is much higher than that of autotrophic culture in the same time; an...
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
| Property | Measurement | Unit |
|---|---|---|
| clearance rate | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a method for treating high ammonia-nitrogen wastewater through nutrition conversion of mixotroph. The method for treating the high ammonia-nitrogen wastewater through nutrition conversion of the mixotroph comprises the following steps: 1, conducting transferring and culture on the mixotroph; 2, conducting high density culture in a culture medium rich in organic carbon or wastewater rich in organic carbon; 3, harvesting heterotrophic cells of the mixotroph; 4, transferring the heterotrophic cells into the high ammonia-nitrogen wastewater for autotrophic culture, absorbing high-concentration nitrogen and ammonia, and purifying the wastewater. According to the method, the method for changing the nutrition metabolism pathway of the mixotroph is introduced for treating the high ammonia-nitrogen wastewater, the treated wastewater can be recycled, the requirement of industrialized wastewater treatment conducted through microalgae is met, and the method is a new approach for conducting sewage treatment through produced microalgae economically and efficiently. The harvested microalgae cells can be further treated and used for preparing biological energy source, animal feed and the like.
Description
technical field [0001] The invention relates to a treatment method for high-ammonia-nitrogen wastewater, in particular to a method for treating high-ammonia-nitrogen wastewater through nutrient conversion of concurrently trophic microorganisms. Background technique [0002] The water resource crisis is a major challenge facing mankind in the 21st century. With the rapid development of global industrialization and modernization, the demand for water resources in human society is increasing day by day. However, due to the serious pollution of the water environment caused by human activities, it restricts or even hinders the momentum of social development and progress. [0003] High ammonia nitrogen (NH 4 + -N) Treatment and purification of wastewater is a major problem in global wastewater treatment. Many industrial and agricultural production sectors, such as animal husbandry, fertilizer industry, explosives industry, landfills, etc., have a large amount of high ammonia ni...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C12N1/20C12N1/12C12R1/89C12R1/01
CPCC02F3/34C12N1/12C12N1/20
Inventor 周文广阮榕生王菁晗黎俊
Owner NANCHANG UNIV