Sludge living organism cell wall breaking device and method used for sludge living organism cell wall breaking

A biological and sludge technology, applied in the field of comprehensive utilization of sewage resources, can solve the problems of low efficiency and high cost, and achieve the effect of simple process, low cost, and high-efficiency wall breaking.

Active Publication Date: 2017-06-30
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the defects of high cost and low efficiency in various sludge treatment and recycling methods in the prior art, the purpose of the present invention is to provide a device that can quickl

Method used

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  • Sludge living organism cell wall breaking device and method used for sludge living organism cell wall breaking

Examples

Experimental program
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Effect test

Embodiment 1

[0038] The process method is used to treat the municipal sludge of the municipal sewage treatment plant, the water content of which is about 81%. Add compound enzyme 200g / t in sludge (complex enzyme is made of α-glucanase, β-glucanase, pectinase, protease, mannase and helicase in mass ratio 10:10:2:1 :1:1 composition), adjust the pH to 7.5 with sodium hydroxide, maintain the temperature at 20-25°C, stir at a speed of 500r / min for 2h, and carry out the sludge biological cell wall pretreatment; The magnetic medium (magnetite) 1000g / t is transferred to a stirring high-speed pulverizer with a steel ball filling rate of 50% for high-speed (rotational speed is about 6000r / min) grinding for 10min to carry out deep wall breaking; After the completion, use a magnetic separator with a magnetic field strength of 800GS to recover the magnetic medium and reuse it. The sludge is centrifuged in a centrifuge for solid-liquid separation. Enter into a carbonization furnace at a temperature of ...

Embodiment 2

[0043] The process method is used to treat the activated sludge of the sewage treatment plant in the industrial park, the water content of which is about 72%. Add compound enzyme 300g / t (composite enzyme is made of α-glucanase, β-glucanase, pectinase, protease, mannase and helicase by mass ratio 10:12:1:1.5 in sludge) :0.8:0.8 composition), adjust the pH to 7.8 with sodium hydroxide, maintain the temperature at 20-25°C, stir at a speed of 300r / min for 1h, and carry out the sludge biological cell wall pretreatment; then add the sludge with a fineness of less than 37μm The magnetic medium (pyrhotite) 1000g / t is transferred to the agitating high-speed pulverizer with a steel ball filling rate of 30% for high-speed (rotational speed is about 6000r / min) grinding for 15min to carry out deep wall breaking; After the wall is completed, use a magnetic separator with a magnetic field strength of 500GS to recover the magnetic medium and reuse it. The sludge is separated from the solid an...

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Abstract

The invention discloses a sludge living organism cell wall breaking device and a method used for sludge living organism cell wall breaking. The device comprises a jet-flow feeding system, an ore pulp high-pressure circulating cavitation system, a high-strength magnetic medium grinding system and a cooling system, wherein a sludge raw material is input into the high-strength magnetic medium grinding system through the jet-flow feeding system; a transmission system is started for enabling a stirrer to stir, so that sludge is grinded for promoting sludge living organism cell wall breaking; the ore pulp high-pressure circulating cavitation system is started for circulating sludge slurry inside and outside the magnetic stirring barrel; and the cooling system is started for keeping a temperature in the magnetic stirring barrel constant until sludge living organism cell wall breaking is completed. The device integrates a Maurice model, a high-pressure homogenizing principle, a hydrodynamic cavitation principle, a gas bubble stretching and dispersing principle, a static cyclone principle, and the like, can be used for quickly and efficiently realizing sludge living organism cell wall-breaking with low cost, is simple in operation process, is convenient to operate, and meets industrial production.

Description

technical field [0001] The invention relates to a sludge treatment device, in particular to a sludge cell wall breaking device and a method for sludge cell wall breaking, belonging to the technical field of comprehensive utilization of sewage resources. Background technique [0002] Since the National Development and Reform Commission put forward the bill on energy conservation and emission reduction in 2007, more and more people have put forward golden ideas for energy conservation and emission reduction. Coupled with the frequent occurrence of natural disasters and climate change in recent years, the country proposed the concept of "low carbon" in 2008, and this year more and more people are promoting low carbon life. With the rapid development of the economy, the treatment rate of urban sewage and industrial wastewater in my country is also increasing year by year. At the same time, a large amount of sludge is also produced in the treatment of sewage and wastewater. It is...

Claims

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Application Information

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IPC IPC(8): B02C17/10B02C17/16B02C17/18B02C17/22B02C17/20C02F11/12
CPCB02C17/10B02C17/163B02C17/1815B02C17/183B02C17/20B02C17/22B02C2201/06C02F11/121C02F2303/06
Inventor 孙伟胡岳华韩海生
Owner CENT SOUTH UNIV
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