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CASS (Cyclic Activated Sludge Technology) treatment method for activated sludge in beet sugar wastewater

A technology of activated sludge and treatment methods, applied in water/sludge/sewage treatment, sludge treatment, dehydration/drying/thickened sludge treatment, etc., can solve problems affecting the quality of ash and residue

Inactive Publication Date: 2018-02-23
沧源南华勐省糖业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: affect the quality of ash residue, ash residue can be directly used as bio-fertilizer or as a raw material for making bio-organic fertilizer

Method used

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  • CASS (Cyclic Activated Sludge Technology) treatment method for activated sludge in beet sugar wastewater
  • CASS (Cyclic Activated Sludge Technology) treatment method for activated sludge in beet sugar wastewater
  • CASS (Cyclic Activated Sludge Technology) treatment method for activated sludge in beet sugar wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0030] Put the cut mud blocks in the combustion furnace, first keep warm at 120°C for 2 hours, and carry out sintering and combustion of organic matter; then gradually raise the temperature to 1200°C, hold for 8 hours, and carry out mud board sintering; finally within 2 hours, gradually cool down to 500°C, gradually cool down to 200°C within 1 hour, and gradually cool down to 20°C within 3 hours.

Embodiment example 2

[0032] Put the cut mud blocks in the combustion furnace, first keep warm at 150°C for 3 hours, and sinter and burn organic matter; then gradually increase the temperature to 1200°C, keep warm for 10 hours, and carry out sintering of clay plates; finally, gradually cool down to within 2 hours 500°C, gradually cool down to 200°C within 1 hour, and gradually cool down to 20°C within 3 hours.

Embodiment example 3

[0034] Put the cut mud blocks in the combustion furnace, first keep warm at 200°C for 4 hours, and carry out sintering and combustion of organic matter; then gradually raise the temperature to 1200°C, keep warm for 12 hours, and carry out mud board sintering; finally within 2 hours, gradually cool down to 500°C, gradually cool down to 200°C within 1 hour, and gradually cool down to 20°C within 3 hours.

[0035] Such as image 3 A filter press shown includes a conveying device, a feeding device and a pressing device, and a feeding device and a pressing device are arranged above the conveying device;

[0036] Described conveying device comprises frame 1, driving sprocket 101, driven sprocket 102, conveying chain 103, driving roller 104, driven roller 105, conveying mesh belt 106, tensioning roller 107, lower hopper group a201 and pressure wheel 2. The two ends of the frame 1 are respectively provided with a driving roller 104 and a driven roller 105, and a conveying mesh belt 1...

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PUM

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Abstract

The invention belongs to the field of bee sugar preparation and particularly relates to a CASS (Cyclic Activated Sludge Technology) treatment method for activated sludge in beet sugar wastewater. TheCASS treatment method comprises the following steps: firstly, carrying out wastewater treatment; secondly, treating excessive sludge; thirdly, sintering a mud slab after pressure filtration. Accordingto the CASS treatment method disclosed by the invention, the wastewater produced in the beet sugar preparation process can be treated; the excessive sludge is doped with plant fibers and then a mixture is pressed and filtered by a pressure filter; a filtered material is cut into blocks which are fired to obtain porous ceramic; the problem of sludge at the bottom of the wastewater is solved whilethe wastewater is treated.

Description

technical field [0001] The invention belongs to the field of sugar production, and in particular relates to a method for treating sugar production wastewater CASS activated sludge. Background technique [0002] The production process of making white sugar from sugarcane needs to use a lot of water as equipment cooling water and other water, and at the same time, 70%-75% of the water in sugarcane is extracted during the production process. At present, the sugar industry has a national mandatory standard "Discharge Standard of Water Pollutants for Sugar Industry" (GB21909-2008), and the waste water discharge in the standard is: less than 51 tons per ton of sugar. The most effective way to treat the wastewater produced in the sugar production process is to use the CASS activated sludge treatment process, using the "pretreatment + aerobic treatment" treatment technology, and the treatment effect is very good. [0003] The quality of the water treated by the CASS activated sludg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12C02F11/12C04B33/132C04B38/06C02F103/32
CPCC02F1/66C02F3/1236C02F11/12C02F11/122C02F2103/32C04B33/1321C04B38/0645C04B38/0675Y02W10/10Y02P40/60
Inventor 杨亚东杨振仙肖金强李玲
Owner 沧源南华勐省糖业有限公司
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