Method for treating urban refuse landfill leachate with sepiolite powder

A technology of sepiolite and sewage treatment agent, which is applied in the direction of special treatment targets, water/sewage treatment, metallurgical wastewater treatment, etc. It can solve the problems of complex sewage treatment process, low cost performance, long treatment cycle, etc., and achieve comprehensive sewage treatment Excellent ability, high decontamination efficiency, fast sedimentation effect

Inactive Publication Date: 2018-06-01
广州市默菲仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the water treatment agents for the seepage of urban waste landfills (biochemical terminal effluent) on the market have single functions, are expensive, have complicated sewage treatment processes, long treatment cycles, large dosages, large amounts of sludge, and low cost performance. Also urgently seek a kind of high-quality and cheap medicament with simple process and remarkable effect

Method used

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  • Method for treating urban refuse landfill leachate with sepiolite powder
  • Method for treating urban refuse landfill leachate with sepiolite powder
  • Method for treating urban refuse landfill leachate with sepiolite powder

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Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0024] A kind of multifunctional sewage treatment agent of embodiment 1~4

[0025] The formula of the multifunctional sewage treatment agent of embodiment 1~4 is:

[0026]

[0027]

[0028] Preparation method:

[0029] Add raw sepiolite powder, polyferric sulfate powder, polyaluminum chloride, and anhydrous ferric chloride powder in the formula into dilute sulfuric acid, mix, and stir for 5-10 minutes to obtain a multifunctional sewage treatment agent.

Embodiment 5

[0030] Embodiment 5 A kind of sewage treatment method

[0031] Experimental address: Landfill in Shaoyang City, Hunan Province

[0032] Sewage source: Water from the secondary settling tank at the biochemical end of the waste seepage liquid in Shaoyang City, Hunan Province landfill.

[0033] Small test steps:

[0034] A. The beaker takes 500ml of water sample (in reddish brown), and the pH value of the sewage is 7.2;

[0035] B. adding weight is the multifunctional sewage treatment agent of the present invention of water sample weight 1%, stirs 3-5 minute;

[0036] C. The measured pH value of the water sample is 3.45, add sodium hydroxide solution, and adjust the pH value of the water sample to about 7;

[0037] D. Stand still, and after 3-5 minutes, the sludge will settle completely, and it can be observed that the color of the sewage is close to that of clear water, and the sewage treatment process of this agent is completed.

[0038] The supernatant (outlet water) was t...

Embodiment 6

[0046] Embodiment 6 A kind of sewage treatment method

[0047] Experimental address: Landfill in Shaoyang City, Hunan Province

[0048] Sewage source: Water from the secondary settling tank at the biochemical end of the waste seepage liquid in Shaoyang City, Hunan Province landfill.

[0049] Pilot test steps:

[0050] A. Self-provided mobile pilot equipment (truck consignment type), sewage pump pumping;

[0051] B. Take the water sample (reddish brown) to the pilot test reaction tank with a sewage pump, the flow rate is 10 tons / hour, and the pH value of the sewage is 7.35;

[0052] C. Open the 1# diaphragm pump to control the dosing amount, control the multifunctional sewage treatment agent of the present invention whose added weight is 1% of the water sample weight, and stir in the pilot plant;

[0053] D. After stirring for 3-5 minutes, turn on the 2# diaphragm pump, add sodium hydroxide solution; adjust the pH value of the water sample to about 7;

[0054] E. The water ...

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Abstract

The invention discloses a method for treating urban refuse landfill leachate with sepiolite powder. A treating agent used in the method comprises raw sepiolite powder, polyferric sulfate, anhydrous ferric chloride, polyaluminum chloride and dilute sulfuric acid. The multifunctional sewage treating agent has a combination effect through compounding of multiple raw materials and is particularly applicable to urban refuse landfill leachate (effluent at biochemical tail ends), coking plant sewage (effluent at biochemical tail ends) and other refractory sewage. The sewage treatment process is simple and high in adaptability. Production of products can be completed without other auxiliary means such as heating, drying, extraction, suction filtration, repeated mixing and stirring and the like. The production cost is reduced, and the investment of the manpower resource and other infrastructure resources is reduced.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, and relates to a multifunctional sewage treatment agent with simple preparation and low cost, a preparation method and application thereof. In particular, it relates to an efficient, cheap and multifunctional treatment agent for garbage seepage from urban garbage landfills and a preparation method thereof. Background technique [0002] Industrial and domestic sewage is waste water that contains a certain amount of toxic substances and is extremely harmful to the environment. If untreated or unqualified sewage is discharged casually, it will become a source of pollution, which is extremely harmful to the living environment. For the sake of human health, industrial and domestic sewage. However, some of the existing treatment methods have high operating costs, some have complex facilities and equipment, some have long treatment cycles, and some methods are prone to secondary pollution. Th...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C02F1/52C02F1/66C02F103/16C02F103/20C02F103/24C02F103/28C02F103/32
CPCC02F1/5236C02F1/66C02F2103/16C02F2103/20C02F2103/24C02F2103/28C02F2103/32C02F2303/02
Inventor肖胜兰肖培苗肖铁亮
Owner广州市默菲仪器有限公司