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

Compound-vinasse wine brewing wastewater reinforced denitrification process

A wastewater and denitrification technology, which is applied in the treatment of food industry wastewater, aerobic and anaerobic process treatment, natural water treatment, etc. The effect of reducing dosage, effective total nitrogen removal and reasonable utilization

Inactive Publication Date: 2017-08-18
NJTECH ENVIRONMENT TECH CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a large amount of organic nitrogen in the waste water of double grain brewing. At the same time, the SV and effluent indicators in the CASS process system are relatively high, and the denitrification is insufficiently estimated, and the pertinence is not strong

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
  • Compound-vinasse wine brewing wastewater reinforced denitrification process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The water quality standard of a large-scale brewing enterprise's brewing waste water is shown in Table 1:

[0017] Table 1 Wastewater Water Quality Index

[0018]

[0019] Enhanced denitrification process of double-grain brewing wastewater. Firstly, the double-grain brewing wastewater is pretreated by sedimentation and anaerobic tank in turn, and then biochemically treated by two-stage A / O subsystems. Finally, sodium hypochlorite is added to the biochemically treated effluent for advanced treatment. . The cultivation and acclimatization of sludge adopts the method of inoculation acclimatization, and the sludge from the anaerobic pool of the enterprise is used. Section A uses a precision magnetic stirrer, and section O uses an air pump for uniform aeration. The system adopts continuous water inflow, sludge reflux, and internal reflux at the same time. Glucose is continuously added to maintain the stability of the carbon source, and acid and alkali are added into the...

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 discloses a compound-vinasse wine brewing wastewater reinforced denitrification process. The process includes the following steps: pretreating compound-vinasse wine brewing wastewater by precipitation and an anaerobic tank in turn, then biochemically treating by a two-stage A / O subsystem, and finally adding sodium hypochlorite to biochemical treatment effluent water for advanced treatment. According to the two-stage A / O process, the short-term hypoxia and aerobic alternations are adopted to replace the long-term aerobic and anoxic operations; the short-term nitrification and denitrification are adopted to replace the long-term nitrification and denitrification; the dosage of carbon, production output of sludge, reaction time and sludge expansion are reduced; the oxygen and organic carbon uses are more reasonable; total nitrogen removing is more effective.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and relates to an enhanced denitrification process for double grain wine brewing waste water. Background technique [0002] Double grain brewing is to ferment the used distiller's grains with grain again. Therefore, the COD, ammonia nitrogen, total nitrogen, BOD, and SS values ​​in the double grain brewing wastewater are high, and the components are complex. The main components are low-carbon alcohols, fatty acids, amino acids, etc. It belongs to high concentration organic wastewater. Since January 1, 2014, enterprises must implement the relevant standards in Table 2 of the Discharge Standard for Fermented Alcohol and Liquor Industrial Water Pollution (GB27631-2011), which has stricter requirements for indicators such as ammonia nitrogen and total nitrogen (See Table 1). There is a large amount of organic nitrogen in the waste water of double grain brewing. At the same time, the SV and effl...

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 Applications(China)
IPC IPC(8): C02F9/14C02F103/32
CPCC02F9/00C02F1/52C02F1/76C02F3/30C02F2103/325C02F2305/06
Inventor 陆曦
Owner NJTECH ENVIRONMENT TECH CO LTD