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A kind of sludge activated carbon anaerobic granular sludge and preparation method thereof

A technology of anaerobic granular sludge and sludge activated carbon, which is applied in water/sludge/sewage treatment, anaerobic digestion treatment, chemical instruments and methods, etc., can solve the problem of high cost of activated carbon, and achieve low raw material cost and stable structure , Improve the effect of purification ability

Active Publication Date: 2019-06-04
工大环境股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high cost of activated carbon and the difficulty of recycling, it is subject to more restrictions in the use process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Dry the sludge particles, grind them into powder, and mix with Fe 3 o 4 Mix the powder, add the mixed powder to 4mol / LZnCl 2 solution, stir evenly, after ultrasonication for 40min, activate at 70°C for 36h, then dry the sludge powder, add deionized water and stir evenly, press into the model, and then put it in the muffle furnace at 480 ℃ calcination for 3 hours to obtain magnetic sludge activated carbon;

[0023] (2) The magnetic sludge activated carbon prepared in the previous step is ground into powder, added to common anaerobic activated sludge and cultivated, the feeding amount of magnetic sludge activated carbon is 300g, in the anaerobic activated sludge reactor For cultivation, the volume of the reactor is 300L, the ordinary anaerobic activated sludge inoculated accounts for 30% of the volume of the reactor, the temperature condition is 18-28°C, the COD in the daily influent is 2000mg / L, the influent is 12L, and the residence time For 18 hours, sludge acti...

Embodiment 2

[0026] (1) Dry the sludge particles, grind them into powder, and mix with Fe 3 o 4 Mix the powder, add the mixed powder to 5mol / LZnCl 2 solution, stir evenly, after ultrasonication for 50min, activate at 70°C for 36h, then dry the sludge powder, add deionized water and stir evenly, press into the model, and then put it in the muffle furnace at 630 Calcined at ℃ for 4h to prepare magnetic sludge activated carbon;

[0027] (2) The magnetic sludge activated carbon prepared in the previous step is ground into powder and added to common anaerobic activated sludge for cultivation. For cultivation, the volume of the reactor is 300L, the ordinary anaerobic activated sludge inoculated accounts for 30% of the volume of the reactor, the temperature condition is 18-28°C, the COD in the daily influent is 3000mg / L, the influent is 12L, and the residence time For 18 hours, sludge activated carbon anaerobic granular sludge was prepared.

[0028] The sludge activated carbon anaerobic granu...

Embodiment 3

[0030] (1) Dry the sludge particles, grind them into powder, and mix with Fe 3 o 4 Mix the powder, add the mixed powder to 6mol / LZnCl 2 solution, stir evenly, after ultrasonication for 30min, activate at 65°C for 36h, then dry the sludge powder, add deionized water to stir evenly, press into the model, and then put it in the muffle furnace at 550 Calcined at ℃ for 4h to prepare magnetic sludge activated carbon;

[0031] (2) The magnetic sludge activated carbon prepared in the previous step is ground into powder, added to common anaerobic activated sludge and cultivated, the feeding amount of magnetic sludge activated carbon is 600g, in the anaerobic activated sludge reactor For cultivation, the volume of the reactor is 300L, the ordinary anaerobic activated sludge inoculated accounts for 30% of the volume of the reactor, the temperature condition is 18-28°C, the COD in the daily influent is 4000mg / L, the influent is 12L, and the residence time For 18 hours, sludge activated...

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PUM

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Abstract

The invention discloses a preparation method for sludge activated carbon anaerobic granular sludge. The preparation method comprises the following steps: preparing magnetic sludge activated carbon; adding the magnetic sludge activated carbon into common anaerobic activated carbon and then culturing; and culturing in an anaerobic activated sludge reactor, thereby acquiring the sludge activated carbon anaerobic granular sludge. The anaerobic granular sludge contains activated carbon which is prepared from sludge and ferroferric oxide, the structure is stable, the raw material cost is low, and the preparation method is simple; and the granular sludge is high in capacity of purifying sewage and is long in service life.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a sludge activated carbon anaerobic granular sludge and a preparation method thereof. Background technique [0002] With the progress of industrial development, the discharge of sewage is increasing year by year, especially the heavy metals in sewage will have a serious impact on human health. Factories represented by metal smelters, electroplating plants, and mining plants will discharge a large amount of heavy metals during production and operation, and waste water containing heavy metals will also be discharged during the manufacturing process of medicines and pesticides; at the same time, waste water discharged from leather factories and paper mills There are also small amounts of heavy metals. Some heavy metals can quickly react with proteins in the human body, affect the activity of enzymes in life activities, and seriously endanger people's health. Therefore, the treatmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F3/34C02F101/30C02F101/20
CPCC02F3/2806C02F3/34C02F2003/003C02F2101/20C02F2101/30
Inventor 叶青
Owner 工大环境股份有限公司