Water purifier for treating garbage leachate

A technology for landfill leachate and water purifying agent, which is applied in water/sewage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problem of expensive equipment investment and treatment costs, and coagulants that cannot meet the standards, etc. problems, to achieve the effects of excellent sedimentation performance, excellent adsorption performance, and saving equipment investment and operating costs

Inactive Publication Date: 2019-03-15
绵阳巴山环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the post-treatment of middle-aged and old-age landfill leachate is basically unable to meet the standard with a single coagulant. Although post-treatment technologies such as microfiltration and reverse osmosis can ensure that the effluent COD discharge meets the standard, the equipment investment and treatment costs are quite expensive. , is not what a developing country like our country can afford

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Proportion of water purifier components: 1 ton of diatomite, 0.15 tons of aluminum sulfate, 0.03 tons of polyferric chloride, mixed evenly with 1.5 tons of water, coagulated with Datianshan biochemical treatment effluent at a ratio of 0.2% for 2 minutes, and then Enter the sedimentation tank for 20 minutes. When the influent water is 500 tons / day, the influent COD cr Under the conditions of 450-1000mg / L, pH 5.5-6.5, and temperature 40-35℃, the effluent COD cr <300mg / L.

Embodiment 2

[0019] Proportion of water purifier components: 1 ton of diatomite, 0.1 ton of aluminum sulfate, 0.05 ton of polyferric chloride, mixed with 1.5 ton of water evenly, and coagulated with Likeng biochemical treatment effluent at a ratio of 0.2% for 2 minutes, then Enter the sedimentation tank for 10 minutes. When the influent water is 500 tons / day, the influent COD cr COD is 600-1200mg / L, pH is 6.5-7.5, and temperature is 40C-35℃. cr <300mg / L.

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PUM

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Abstract

The invention provides a water purifier for treating garbage leachate. The water purifier comprises the following ingredients in parts by weight: 25-35 parts of kieselguhr, 0.5-1.5 parts of polyferricchloride and 3-5 parts of aluminum sulfate. The water purifier is applicable to removal of a COD (chemical oxygen demand) from water with various nondegradable organisms, and particularly to water treatment of the middle aged and aged garbage leachate.

Description

technical field [0001] The invention relates to a water purifying agent, in particular to a water purifying agent for removing refractory organic matter in biochemical effluent water of landfill leachate. Background technique [0002] With the development of the economy and the improvement of people's living standards, the garbage produced by human beings is also increasing. Landfill is currently the most widely used and cheapest waste treatment method in China. The leachate produced by landfill has complex components, and its water quality changes with the passage of landfill time. The treatment of landfill leachate has become an international problem. Especially middle-aged and old-age landfill leachate has low biodegradability and high concentration of humus, and biochemical methods for treating landfill filtrate often fail to meet its discharge standards. According to relevant literature, landfill leachate still has 500-1000 mg / L of COD after biochemical treatment. cr ...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/28B01J20/14
CPCC02F1/5236B01J20/0229B01J20/0248B01J20/0281B01J20/0288B01J20/14C02F1/281
Inventor 曾强
Owner 绵阳巴山环保科技有限公司
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