Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Landfill leachate treatment process based on PMVR-ZLD

A technology of landfill leachate and treatment process, which is applied in the field of landfill leachate treatment technology based on PMVR-ZLD, can solve the problems of affecting the water quality of influent, unsafe operation, solidification into bricks, etc., and achieves good operational flexibility and safe operation. Reliable, reduced operating costs

Inactive Publication Date: 2020-09-25
清源环境建设股份有限公司
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] In order to overcome the many problems in the landfill leachate treatment process, such as the inability to evaporate, concentrate and crystallize the waste water to produce salt, so that it cannot be solidified into bricks and then landfilled, which affects the quality of the influent water. In addition, there is still energy high consumption, low efficiency, high cost, unsafe operation, and low online rate, the present invention provides a PMVR-ZLD-based landfill leachate treatment process, which is capable of evaporating, concentrating, crystallizing and producing salt from waste water, effectively addressing the problems of Scaling and reduce system energy consumption, reduce operating costs, safe and reliable operation, high online rate, good operability and operational flexibility

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
  • Landfill leachate treatment process based on PMVR-ZLD
  • Landfill leachate treatment process based on PMVR-ZLD
  • Landfill leachate treatment process based on PMVR-ZLD

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] The technical solutions of the present invention will be clearly and completely described below in conjunction with embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0053] A kind of landfill leachate treatment process based on PMVR-ZLD comprises the following steps:

[0054] a) Raw liquid collection: Landfill leachate is the raw liquid, which enters the raw liquid pool for collection;

[0055] b) Pretreatment: The material liquid pump extracts the raw liquid from the raw liquid pool and transports it to the integrated coagulation and sedimentation system for treatment. At this time, the integrated dosing system can put the coagulants PAC and PAM into the integrated coagulation and sed...

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 belongs to the technical field of garbage wastewater treatment, and particularly relates to a landfill leachate treatment process on PMVR-ZLD. The process comprises the following steps of: stock solution collection, pretreatment, preheating, evaporation separation, advanced treatment, solidification and the like. According to the invention, a coagulating sedimentation system is adopted in pretreatment, so that the problem of unstable operation of the device caused by blockage is effectively solved; an MVR forced circulation evaporation separation system is adopted to perform wastewater evaporation on a leachate, so that the problems of heat transfer coefficient reduction, energy consumption increase, evaporator blockage and shutdown are avoided; the advanced treatment systemis used for treating evaporated effluent, so that the cost is greatly reduced; by adopting a landfill leachate zero-emission treatment system, the leachate is subjected to evaporation separation, generated crystals are solidified into bricks and then subjected to landfill treatment, the quality of inflow water is not affected, and the landfill leachate zero-emission treatment system has more advantages compared with a concentration recharge mode adopted for leachate wastewater treatment at present.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, in particular to a process for treating landfill leachate based on PMVR-ZLD. Background technique [0002] Landfill leachate is the sewage produced in the landfill area during the landfill process, and also includes car washing wastewater and road flushing wastewater. There are many factors that affect the amount of leachate produced, among which the landfill leachate is mainly The source is rainfall infiltration, in addition to the moisture contained in the garbage itself and the waste liquid produced by anaerobic decomposition, and the landfill life, garbage compaction, garbage properties, pore water content of the garbage pile, atmospheric evaporation, whether there is Groundwater infiltration will have a certain impact on the amount of leachate. [0003] The water quality of landfill leachate is quite complex, generally containing high concentrations of COD, heavy metal salts, ...

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): C02F9/10C02F11/121C02F103/06
CPCC02F9/00C02F11/121C02F2103/06C02F1/56C02F1/5236C02F2001/007C02F1/048C02F1/06C02F1/043C02F1/441C02F1/66
Inventor 苏宏伟孙全婷戚志忠雷彪
Owner 清源环境建设股份有限公司
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
Eureka Blog
Learn More
PatSnap group products