Anaerobic membrane bioreactor for treating livestock and poultry wastewater containing high-concentration roxarsone

An anaerobic membrane biology and reactor technology, applied in the field of water treatment, can solve problems such as low conversion efficiency of roxarsone, poor effluent quality, sludge loss, etc., and achieve the effects of guaranteed performance, efficient treatment, and loss prevention

Pending Publication Date: 2022-03-29
UNIV OF SCI & TECH OF CHINA
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of poor effluent quality, serious sludge loss, and low conversion efficiency of roxarsone when the existing anaerobic biological treatment method is used to treat livestock wastewater containing high concentration of roxarsone, the present invention provides a method for treating

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
  • Anaerobic membrane bioreactor for treating livestock and poultry wastewater containing high-concentration roxarsone
  • Anaerobic membrane bioreactor for treating livestock and poultry wastewater containing high-concentration roxarsone
  • Anaerobic membrane bioreactor for treating livestock and poultry wastewater containing high-concentration roxarsone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] like figure 1 As shown, the anaerobic membrane bioreactor used in this embodiment to treat livestock wastewater containing high concentrations of roxarsone is an upflow anaerobic reactor, including a reactor body, and a water inlet is provided at the bottom of the reactor body , The top is provided with an air outlet and a water outlet; the inside of the reactor body is provided with a membrane module and a carbon fiber brush, and the membrane module is located above the carbon fiber brush; there is an opening on the membrane module, and the opening is connected to the water outlet through a pipe; inoculation in the area where the carbon fiber brush is located There is anaerobic granular sludge; anaerobic granular sludge is subjected to multi-step domestication through simulated livestock wastewater containing from low to high concentrations of roxarsone, and anaerobic bacteria with resistance to roxarsone are screened and bred, So as to adapt to the influent conditions...

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 an anaerobic membrane bioreactor for treating livestock and poultry wastewater containing high-concentration roxarsone, and belongs to the technical field of sewage treatment.The anaerobic membrane bioreactor is characterized in that simulated livestock and poultry wastewater containing low-concentration roxarsone to high-concentration roxarsone is gradually used for domesticating the reactor, anaerobic flora resistant to roxarsone is screened and cultivated, and the anaerobic flora resistant to roxarsone is obtained; under the condition of high-concentration roxarsone, stable and efficient removal of COD and rapid conversion of roxarsone are realized, and meanwhile, methane-rich biogas can be generated for recycling. The reactor disclosed by the invention can stably run for a long time, and solves the problems of poor effluent quality, serious sludge loss, low roxarsone conversion efficiency and the like when the livestock and poultry wastewater containing high-concentration roxarsone is treated by an existing anaerobic biological treatment method.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to an anaerobic membrane bioreactor (AnMBR) for treating livestock and poultry wastewater containing high-concentration roxarsone. Background technique [0002] Roxarsone compounds are widely used in agriculture and livestock breeding, such as additives, herbicides, pesticides, organic fertilizers, soil disinfectants, etc., and become an important source of arsenic pollution in the environment. Although roxarsone compounds themselves have low toxicity, they can be metabolized into more toxic inorganic arsenic (such as arsenite) in the environment, resulting in serious arsenic pollution in local areas and posing a huge potential threat to human health. . Roxarsone compounds usually have high water solubility, so their residues in livestock and poultry wastewater are more serious. Pollution control of roxarsone in livestock and poultry wastewater has received increasing atte...

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): C02F3/28C02F101/30
CPCC02F3/2853C02F3/2806C02F3/2866C02F2101/306
Inventor 盛国平王睿袁丽李正浩
Owner UNIV OF SCI & TECH OF CHINA
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