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Hazardous waste handling center waste water integrated treatment system and method

A hazardous waste and comprehensive treatment technology, applied in the direction of sustainable biological treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve problems such as difficult to meet water discharge requirements, complex components, etc., and achieve load impact resistance Strong performance and strong operational feasibility

Active Publication Date: 2012-03-14
BMEI
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Problems solved by technology

[0009] Compared with general heavy metal wastewater, wastewater from hazardous waste disposal centers includes effluent from physical and chemical systems, domestic sewage, initial rainwater, and landfill leachate, etc., with higher COD and BOD content and more complex components, which are difficult to meet by traditional processes. water requirements

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  • Hazardous waste handling center waste water integrated treatment system and method
  • Hazardous waste handling center waste water integrated treatment system and method

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Embodiment Construction

[0049] Such as figure 2 As shown, the comprehensive wastewater treatment system of the hazardous waste disposal center of the present invention includes a pretreatment system, an MBR biological treatment system, a post-treatment system, and a sludge thickening and dewatering system, in which:

[0050] The pretreatment system includes: a homogenization adjustment system and a heavy metal reaction precipitation system. The homogenization adjustment system includes a scum-removing grill 1 and a wastewater adjustment tank 2 installed on the side of the wastewater adjustment tank 2 that adjusts the water quality and quantity. The heavy metal reaction precipitation system includes a reaction unit equipped with a stirring device connected in sequence, which is a reduction tank 4, a neutralization tank 6, and a flocculation tank 8, respectively adding acid and reducing agent, alkali, coagulant / coagulant to the reaction unit The first dosing device 3, the second dosing device 5, and the ...

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Abstract

The invention relates to a hazardous waste handling center waste water integrated treatment system and method. The hazardous waste handling center waste water integrated treatment system comprises a pretreatment system, a membrane biological reactor (MBR) biological treatment system, a post-treatment system and a sludge concentration dehydration system, which are sequentially connected with each other, wherein the pretreatment system comprises a homogenous adjusting system and a heavy metal reaction precipitation system, the MBR biological treatment system comprises a hydrolysis acidificationpond and an MBR system, the post-treatment system comprises a filtration absorption device and a sterilization device, and the sludge concentration dehydration system comprises a sludge storage pond and a sludge concentration dehydration system. The hazardous waste handling center waste water integrated treatment system is suitable for processing the hazardous waste handling center waste water which has high content of heavy metal, poor biodegradability and larger fluctuation of the water quality, the recovered water standard can be reached, no secondary pollution exists, the long-term running feasibility is strong, and the implementation of the system is free from being restricted by abroad technology.

Description

Technical field [0001] The invention relates to a waste water treatment system and method, and more specifically, to a waste water comprehensive treatment system and method of a hazardous waste disposal center. Background technique [0002] 1. Overview of wastewater from hazardous waste disposal center [0003] Hazardous waste refers to waste that poses a major threat to human health or the environment when improperly handled, stored, transported, handled, and disposed of. With the development of industry, hazardous wastes discharged from industrial production processes are increasing. It is estimated that 330 million tons of hazardous waste are generated annually in the world. Due to the serious pollution and potentially serious impacts caused by hazardous waste, its safe treatment and disposal and supervision of the whole process have attracted much attention. [0004] The main function of the hazardous waste disposal center is to process hazardous wastes from the society. Amon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/52C02F3/02C02F101/20
CPCY02W10/10
Inventor 翁晓敏孙雅丽陈旭娈李永华张希华
Owner BMEI
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