Highland and severe cold areas sewage treatment method

A sewage treatment method and high-cold technology, applied in water/sewage treatment, biological water/sewage treatment, water/sewage multi-stage treatment, etc. Hydraulic retention time, rapid growth and reproduction, and the effect of increasing the concentration of microorganisms

Active Publication Date: 2006-06-21
CHENGDU BRANCH TIBET GUOCE ENVIRONMENTAL PROTECTION TECH
View PDF0 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the climate characteristics of high altitude, high cold, low oxygen, large temperature difference between day and night, strong sunshine, low air pressure, and low temperature in the alpine plateau, the above methods are not only difficult to implement, but also cannot achieve ideal treatment. Effect

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
  • Highland and severe cold areas sewage treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Will be processed into 1cm 3 WZT (polymer organic polyurethane foam), according to 4kg / 1m 3 The amount installed in the carrier bioreactor, and then pass into the sewage or landfill leachate (use the treated backwater to adjust the COD cr 2800~3000mg / L), and at the same time add 2kg of compound engineering bacteria per cubic sewage (microorganism content 2.5×10 9 piece / g). Under the condition of aeration, the dissolved oxygen is controlled at 2-3mg / L, the temperature is controlled at 15-25°C, the pH is controlled at 8-9, and the reflux is repeated until the biological load reaches 35-45g / L, that is, the fixation and acclimatization is successful. . Then pass into sewage or landfill leachate according to the process flow for treatment. Introduce the sewage or landfill leachate into the adjustment tank and mix evenly, introduce the adjusted and mixed sewage into the aeration and stripping tank, add quicklime to the pool to adjust the pH=9 to 10, then carry out aeratio...

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

A method for treating wastewater in high-plateau and high-cold area, the wastewater and garbage leakage liquid being discharged through processes of physicochemical, biological and ecological steps. In the biological steps, carrier biological reaction device is employed, and by using immobilization technology of microporous biological carrier (WZT) and microorganism to improve the treating effect. In the ecological step, the artificial ecological wetland is employed. The method can treat wastewater especially wastewater in high-plateau and high-cold area with distinct effect because the critical technology of carrier biological reaction device and artificial ecological wetland can suit the climatic condition in high-plateau and high-cold area and it combines the physicochemical, biological and ecological steps organically, the wastewater treated can all reach the I class emission standard of country second category watershed.

Description

[0001] Field [0002] The invention belongs to the field of sewage treatment, and in particular relates to a treatment method for sewage in plateau alpine areas, especially garbage leachate. Background technique [0003] At present, there are mainly biological treatment methods (such as activated sludge method, anaerobic biochemical method and biofilm method, etc.), physical and chemical treatment methods (such as physical method, chemical method, physical chemical method, etc.) and land treatment methods for sewage treatment at home and abroad. . The water temperature required by the activated sludge method is optimal at 20-30°C. For cold regions, the purification effect will be greatly reduced. In addition, for the treatment of high-concentration organic wastewater such as landfill leachate, the sludge is very sensitive to toxic substances, which is easy to make the sewage The mud flocs become finer, and the treatment effect deteriorates. After the outage, the activated sl...

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): C02F9/14C02F1/52C02F1/58C02F3/10C02F3/30C02F3/32
CPCY02W10/10
Inventor 陈鸿张培军周应红邓宇余辉
Owner CHENGDU BRANCH TIBET GUOCE ENVIRONMENTAL PROTECTION TECH
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