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Active sludge carbon and its making method and use

A technology of activated sludge charcoal and activated sludge, applied in sludge treatment, water/sludge/sewage treatment, sludge treatment through temperature control, etc., can solve problems that have not been reported yet, reduce costs and solve environmental problems pollution effect

Inactive Publication Date: 2004-05-05
王炳坤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the treatment of activated sludge in China mostly adopts relatively simple landfill methods, and the research on the recycling of activated sludge has not yet been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: Dehydrate the activated sludge at 100°C, dry it, and heat it to 200°C in an anoxic state in an electric furnace with good sealing performance, so that the activated sludge is evenly heated for 2 hours, cooled, crushed, and screened separately Activated sludge charcoal samples 1a and 1b were obtained by passing through a 200-mesh sieve and a 240-mesh sieve.

Embodiment 2

[0013] Example 2: Activated sludge was dehydrated and dried at 110°C, heated to 350°C in an electric furnace, and heated for 1.5 hours. Other steps were the same as in Example 1 to prepare samples 2a and 2b.

Embodiment 3

[0014] Example 3: Activated sludge was dehydrated and dried at 105°C, heated to 550°C in an electric furnace for 1.0 hour, and other steps were the same as in Example 1 to prepare samples 3a and 3b.

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Abstract

An active sludge carbon is prepared from the active sludge obtained by treating sewage through treating it at 200-700 deg.C. It has high properties of the active carbon, so it can be used as filler of plastic products.

Description

1. Technical field [0001] The invention relates to activated sludge after sewage biochemical treatment. 2. Background technology [0002] The treatment and disposal of solid waste is one of the major environmental pollution and environmental protection issues that need to be solved urgently at home and abroad, especially the large amount of activated sludge produced in the biochemical treatment process of domestic sewage and industrial wastewater. It is estimated that the amount of activated sludge produced by domestic sewage biochemical treatment is about 100 million tons per year, and the amount of activated sludge produced by biochemical treatment of printing and dyeing wastewater in a city in Jiangsu Province alone is as high as 400,000 tons per year. Therefore, how to effectively treat and dispose of the activated sludge produced in the process of sewage biochemical treatment has become an important research topic and an urgent problem to be solved by environmental prot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00C02F11/00C02F11/18
Inventor 王炳坤陈必风董磊印寿荣
Owner 王炳坤
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