Check patentability & draft patents in minutes with Patsnap Eureka AI!

Treatment method of landfill leachate

A landfill leachate and treatment method technology, which is applied in the field of landfill leachate treatment, can solve the problems of complex and unreachable landfill leachate components, and achieve the effect of reducing heavy metal ions and other pollutants

Active Publication Date: 2019-02-12
ZHEJIANG OCEAN UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that the leachate of the existing landfill has complex components, and the CANON process is not stable in the treatment of the leachate with high ammonia and nitrogen, so the treatment effect often fails to meet the design requirements. To provide a method for stabilizing the landfill leachate with complex and variable components, and discharging the leachate up to the standard

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A treatment method for landfill leachate, said treatment method comprising the following steps:

[0027] Step 1: Make the mixture of cinder, fly ash and modified chitin into landfill leachate treatment material, and pour it into the landfill leachate neutralization tank together with lime; coal cinder, fly ash and modified chitin The mass ratio is 3:2:1; the mass ratio of landfill leachate treatment material to lime is 3:1; the modified chitin is prepared by the following process: add 20 parts of chitin with a deacetylation degree of 35% to 100 Soak in 2.5 mol / L sodium hydroxide solution for 1 day, filter, wash, add hydrogen peroxide to bleach, filter, wash, dry, add 1 part of epibromohydrin, 0.05 part of maleic anhydride, 0.5 part of trimethylamine aqueous solution, 0.001 part of azobisisobutyronitrile and 0.01 part of tetrabutylammonium bromide were stirred under pressure, the stirring speed was 400r / min, the stirring temperature was 150°C, the stirring time was 15min...

Embodiment 2

[0033] A treatment method for landfill leachate, said treatment method comprising the following steps:

[0034] Step 1: Make the mixture of cinder, fly ash and modified chitin into landfill leachate treatment material, and pour it into the landfill leachate neutralization tank together with lime; coal cinder, fly ash and modified chitin The mass ratio of the landfill leachate treatment material to lime is 4:3:1; the mass ratio of landfill leachate treatment material to lime is 3:1; the modified chitin is prepared by the following process: 23 parts of chitin with a deacetylation degree of 38% are added to 125 Soak in 2.8 mol / L sodium hydroxide solution for 2 days, filter, wash, add hydrogen peroxide to bleach, filter, wash, dry, add 2 parts of epibromohydrin, 0.6 parts of maleic anhydride, 0.8 parts of trimethylamine aqueous solution, 0.002 parts of azobisisobutyronitrile and 0.04 parts of tetrabutylammonium bromide were stirred under pressure, the stirring speed was 500r / min, ...

Embodiment 3

[0040] A treatment method for landfill leachate, said treatment method comprising the following steps:

[0041] Step 1: Make the mixture of cinder, fly ash and modified chitin into landfill leachate treatment material, and pour it into the landfill leachate neutralization tank together with lime; coal cinder, fly ash and modified chitin The mass ratio of the landfill leachate treatment material to lime is 5:3:1; the mass ratio of landfill leachate treatment material to lime is 3:1; the modified chitin is prepared by the following process: 35 parts of chitin with a deacetylation degree of 45% are added to 140 Soak in 3.5 mol / L sodium hydroxide solution for 3 days, filter, wash, add hydrogen peroxide to bleach, filter, wash, dry, add 3 parts of epibromohydrin, 0.09 parts of maleic anhydride, 0.9 parts of trimethylamine aqueous solution, 0.003 parts of azobisisobutyronitrile and 0.05 parts of tetrabutylammonium bromide were stirred under pressure, the stirring speed was 700r / min,...

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 landfill leachate. The treatment method adopts an inorganic flocculating agent and an organic flocculating agent; the inorganic flocculating agent is a compound inorganic flocculating agent taking activated clay as a main component, is a flocculating agent capable of reducing ammonia nitrogen in water, can be used for removing nitrogen and also can beused for precipitating suspended matters; the organic flocculating agent is a compound organic flocculating agent taking polyacrylamide as a main component; anionic polyacrylamide and heavy metal ions are combined to form insoluble sediment; in a formula, chitosan is an anionic high-polymer flocculating agent and has a charge neutralization effect, an adsorption and bridging effect and a metal chelating effect. The chitosan is compounded with activated carbon and a chemical bridge is formed between the anionic chitosan and the porous activated carbon and is used for neutralizing and reducingcharges on the surface of colloid, so that destabilization of the colloid is facilitated; the formula has the function of reducing heavy metal ions and other pollutants in water. The treatment methodprovided by the invention can be used for carrying out stable treatment on the landfill leachate of a refuse landfill site which has complicated and changeable components, and the landfill leachate isdischarged after reaching the standards.

Description

technical field [0001] The invention relates to a garbage treatment method, in particular to a garbage leachate treatment method. Background technique [0002] Landfill leachate refers to the moisture contained in the garbage itself in the landfill, the rain and snow water and other moisture entering the landfill, deducting the saturated water holding capacity of the garbage and the covering soil, and passing through the garbage layer and the covering soil. A high concentration wastewater. Landfill leachate has characteristics different from ordinary urban sewage: the concentration of pollutants is extremely high, and the COD and ammonia nitrogen concentrations of some landfill leachate can be as high as nearly 100,000 and nearly 10,000 mg / L, respectively. There are three most prominent features of the leachate: one is the high concentration of ammonia nitrogen, which has an inhibitory effect on the reproduction and growth of microorganisms; the other is the low concentrati...

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): C02F9/14C02F101/16C02F101/20C02F103/06
CPCC02F1/20C02F1/5236C02F1/5245C02F1/5263C02F1/54C02F1/56C02F1/66C02F3/1263C02F3/28C02F9/00C02F2001/007C02F2101/16C02F2101/20C02F2103/06C02F2301/08
Inventor 孙静亚麻跃阳广凤张富生
Owner ZHEJIANG OCEAN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com