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

System and method for treating landfill leachate wastewater

A waste water treatment system and landfill leachate technology, which is applied in filtration treatment, water/sewage treatment, polluted groundwater/leachate treatment, etc., can solve the problems of high operation and maintenance costs, difficult treatment of concentrated liquid, etc., and achieve heavy metal ions High removal rate, improved treatment effect, and improved effluent quality

Inactive Publication Date: 2018-12-18
ZHEJIANG WORLD CLEAN ENVIRONMENT ENG CO LTD
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These processes generally have the characteristics of high operation and maintenance costs and difficult handling of concentrates

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
  • System and method for treating landfill leachate wastewater
  • System and method for treating landfill leachate wastewater
  • System and method for treating landfill leachate wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 As shown, a landfill leachate wastewater treatment system provided in this embodiment includes a sequentially connected pretreatment unit, a water distribution tank 6, a UASB anaerobic reactor 7, an A / O biochemical treatment unit, an MBBR tank 10, and a sedimentation tank 11 and constructed wetland units,

[0043] The pretreatment unit includes a grid well 1, a sump tank 2, a regulating tank 3, a pipeline mixer 4 and an air flotation tank 5 connected in sequence, and the pipeline mixer 4 has two feeding ports, one for adding coagulation agent, and the other is used to add coagulant aid, wherein the coagulant is 5% PAC solution, and the coagulant aid is 0.1% PAM solution;

[0044] Described A / O biochemical treatment unit comprises anoxic pond 8 and aerobic pond 9, is provided with nitrification liquid return pipe 17 between the outlet end of aerobic pond 9 and the water inlet end of anoxic pond 8 simultaneously, in addition A submersible mixer is insta...

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 system for treating landfill leachate wastewater. The system comprises a pretreatment unit, a water distribution tank, a UASB anaerobic reactor, an A / O biochemical treatmentunit, an MBBR tank, a sedimentation tank and a constructed wetland unit which are sequentially connected, a spherical suspended biological filler is added into the MBBR tank, and the spherical suspended biological filler has the characteristics of strong hydrophilicity, and easiness in film hanging. The system and a method for treating the landfill leachate wastewater in the invention adopt a coagulation air flotation, UASB, A / O, MBBR and constructed wetland treatment, so the quality of effluent water is improved, thereby the effluent water of the system reaches high standards.

Description

technical field [0001] The invention relates to the technical field of waste water treatment, in particular to a landfill leachate waste water treatment system and method. Background technique [0002] Landfill leachate refers to the secondary pollutants produced by extraction, hydrolysis and fermentation due to the leaching and washing of rainwater and the immersion of surface water and groundwater in the process of stacking and disposal of garbage, which mainly comes from the content of the garbage itself. Water, water produced by garbage biochemical reactions and atmospheric precipitation, including landfill leachate, waste incineration plant leachate, waste comprehensive treatment site leachate and waste transfer station leachate. [0003] Landfill leachate has COD and BOD 5 It has the characteristics of high concentration, high content of ammonia nitrogen, high content of heavy metals, large changes in water quality and quantity, and imbalance of microbial nutrient ele...

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): C02F9/14C02F3/10C02F11/12C02F103/06
CPCC02F1/001C02F1/24C02F1/50C02F1/5236C02F1/5281C02F1/56C02F3/105C02F3/109C02F3/30C02F3/32C02F9/00C02F11/122C02F2001/007C02F2103/06Y02W10/10
Inventor 袁云杰陈宽
Owner ZHEJIANG WORLD CLEAN ENVIRONMENT ENG CO LTD