Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Treatment method of landfill leachate

A landfill leachate and treatment method technology, which is applied in the field of landfill leachate treatment, can solve problems such as high operating costs and difficult treatment of deammonization tail gas, and achieve the effect of reducing production costs and reducing the amount of treatment

Active Publication Date: 2012-07-11
北京昊业怡生科技有限公司
View PDF5 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The operation cost of this process is high, and there are problems such as the difficulty in handling the deamination tail gas

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
  • Treatment method of landfill leachate
  • Treatment method of landfill leachate
  • Treatment method of landfill leachate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The following combination figure 1 and figure 2 , the processing method of landfill leachate of the present invention is described in detail:

[0038] (A) Solid-liquid separation: first pass the leachate through a 10mm grid to remove the floating and bulky substances, and the floating and bulky substances are sent to the landfill for harmless landfill treatment in a closed garbage truck , the sewage obtained is sent to step (B) for processing;

[0039] (B) Anaerobic treatment of sewage: the sewage obtained in step (A) is metered and sent to an anaerobic reactor, and the anaerobic treatment equipment includes an anaerobic reactor and a separation system. The anaerobic reactor is equipped with anaerobic sludge, the content of anaerobic sludge in the sewage is more than 30,000-40,000 mg / liter (weight / volume ratio), and the volume load of chemical oxygen consumption is 15-25kg / m 3 d. The anaerobic reactor is equipped with a stirrer, and the stirring speed is 30-50 rpm,...

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 relates to a treatment method of a landfill leachate, which comprises the step of treating the landfill leachate by adopting a multi-stage processing method of solid-liquid separation, anaerobic treatment, aerobic treatment, membrane bioreactor treatment, nanofiltration membrane, evaporation, ion exchange and spray drying. Due to the adoption of the treatment method, the problem that the future trouble of difficult treatment is finally generated due to higher and higher ammonia nitrogen and chemical oxygen demand COD in the landfill leachate caused by recharging is solved.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a treatment method for landfill leachate. Background technique [0002] Landfill leachate has complex components, not only containing organic pollutants of chemical oxygen demand (CODcr) and biological oxygen demand (BOD5), but also various metals and plant nutrients, such as ammonia nitrogen. Moreover, the concentration of chemical oxygen demand (CODcr) and biological oxygen demand (BOD5) is high, which can reach tens of thousands of milligrams per liter of landfill leachate. In addition, the composition of the landfill leachate also changes with the landfill time. The ratio of BOC / COD in the leachate of the landfill with a landfill time of 3-5 years is relatively high, generally 0.4-0.8, and the concentration of ammonia nitrogen It is around 1000 mg / L; the ratio of BOC / COD of landfill leachate for more than 3-5 years is obviously reduced, generally around 0.2,...

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): C02F9/14C02F11/00C02F11/14C02F11/02C05F17/00C05F7/00C01C1/16C02F1/42C02F1/04C02F1/12
CPCY02A40/20Y02E50/30Y02W10/20Y02W30/40
Inventor 于景成田丹靳国良丁雪梅田艺伟桑力维辛凯张有彭建辉李辉成
Owner 北京昊业怡生科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com