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Method for preventing and controlling sand by utilizing urban organic wastes

A technology for organic waste and treatment, which is applied to the removal of solid waste, organic fertilizer, dehydration/drying/concentrated sludge treatment, etc. It can solve the problems of urban sludge and domestic waste pollution, and achieve the benefits of plant growth, Accelerate the degradation and solve the effect of secondary pollution

Inactive Publication Date: 2002-10-02
陈子庭
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems in the above-mentioned prior art, to obtain organic waste treatment products after treating urban sludge and domestic garbage, and then use the organic waste treatment products for sand prevention and control, thereby completely solving the problem of The pollution problems of urban sludge and domestic garbage, and at the same time, a new plan for desert control is proposed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The 10L sludge with a water content of about 70% of the urban sewage treatment plant is treated with 2 liters of quicklime in a barrel provided with a stirring device, and stirred, and the exothermic and alkaline effects of the quicklime in the presence of water (the sludge treated in this way) pH is generally around 12) to kill viruses and some bacteria, and retain beneficial bacteria, then add hydrochloric acid and stir to neutralize to around pH 8-10, so that the obtained material becomes viscous slurry, then granulated, and bagged , to obtain the organic pollutant treated product of the present invention.

Embodiment 2

[0017] Grind 10 kg of urban domestic waste into fine particles with a pulverizer, add water to dilute to a mixture containing 40-60% solid matter, then add 4 kg of quicklime, use the heat release and alkalinity of quicklime to kill viruses and some pathogenic bacteria , the beneficial bacteria are retained, and then neutralized to a pH of about 8-10 with a sulfate solution, so that the obtained material becomes a viscous slurry state, then granulated, and bagged to obtain the organic pollutant treatment product of the present invention.

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Abstract

The method for controlling desert or desertified soil by urban organic wastes includes the following steps: purvelizing water-containing sludge treated by urban sewage treatment plant or city domestic refuse to obtain mixture whose solid material content is 40-60, mixing said mixture with quickling whose demand is 20-30% of sludge weight to be treated, stirring them, utilizing heat quantity and alkali action released from quicklime mixed with water (pH of treated sludge is about 12) to kill virus and partial bacteria and remain beneficial bacteria, adding acid material, stirring them and neutralizing to that pH value is about 8-10 to obtain paste material, granulating and packaging so as to obtain the invented product. Said product can be mixed plant seed, and can be directly applied to desert or desertified soil.

Description

field of invention [0001] The invention relates to a method for preventing and controlling sand by using urban organic waste disposal. technical background [0002] Urban sewage treatment plants produce a large amount of sludge. Since these sludges contain toxic heavy metal ions and other harmful substances, if they are discharged into the environment, they will inevitably pollute the environment and even cause heavy metal poisoning of nearby residents. Similarly, with the rapid increase of the urban population, a large amount of urban domestic garbage has accumulated and cannot be effectively treated. Although some places have adopted burial treatment, due to the slow degradation rate of many components in the garbage, it will not be recovered for decades or even hundreds of years. completely degraded. Therefore, also do not have a kind of very effective municipal sludge and garbage disposal method at present. Contents of the invention [0003] The purpose of the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00C02F11/14C05F9/04
CPCY02A40/20
Inventor 陈子庭
Owner 陈子庭
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