Equipment for reclaiming lead acid battery waste water

A lead-acid battery and wastewater technology, which is applied in adsorption water/sewage treatment, neutralized water/sewage treatment, reduced water/sewage treatment, etc., can solve problems such as resource waste, reduce burden, reduce lead ion content, and improve water quality effect

Inactive Publication Date: 2011-04-20
SHANGHAI LIGHT IND RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] No matter which method is used to treat lead-acid battery wastewater, the current producers have the phenomenon of waste of resources, such as direct discharge of wastewater that meets the standard

Method used

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  • Equipment for reclaiming lead acid battery waste water
  • Equipment for reclaiming lead acid battery waste water
  • Equipment for reclaiming lead acid battery waste water

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Experimental program
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Embodiment Construction

[0030] The lead-acid storage battery waste water recycling process of the embodiment of the present invention includes two parts: a pre-treatment process and a post-treatment process. The pre-treatment process is mainly to enable the treated wastewater to be discharged or reused up to the standard, and the post-treatment process is mainly to perform advanced treatment to produce pure water that is directly used in production.

[0031] figure 1 It shows the pre-treatment process flow in the lead-acid battery wastewater reuse process according to an embodiment of the present invention. image 3 It shows the pre-treatment equipment in the lead-acid battery wastewater recycling process according to an embodiment of the present invention. Refer below figure 1 and image 3 Shown describes the pre-processing equipment and its process flow.

[0032] refer to figure 1 As shown, the pre-processing equipment 100 includes a water collection tank 101, a reaction tank 102, a sedimentat...

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Abstract

The invention relates to an equipment for reclaiming lead acid battery waste water, which is used for meeting the requirements of battery industry for the harmless and resource treatment of lead acid battery waste water. The equipment comprises a reaction tank, a precipitation control device, a precipitation tank, a terminal pH regulator and a reverse osmosis device, wherein the reaction tank is used for feeding lead-containing waste water to be reacted; the precipitation control device is used for adding organic heavy metal complex precipitant or biologic precipitant in the reaction tank and adding coagulant aid and flocculating agent to carry out reaction and absorb or complex lead ions; the precipitation tank is used for feeding reacted waste water, precipitating absorbed or complexed lead ions at the lower part of the precipitation tank to form sludge and discharging supernatant liquor; the terminal pH regulator is used for regulating the pH value of the supernatant liquor to a target interval and discharging the supernatant liquor as primary treating water; and the reverse osmosis device is used for carrying out reverse osmosis treatment for the primary treating water so as to remove salt in the waste water.

Description

technical field [0001] The invention belongs to the field of accumulator production, and in particular relates to resource recovery and utilization of accumulator production wastewater. Background technique [0002] During the production process of batteries, a large amount of lead-containing wastewater will be generated, and the lead content exceeds the national standard by dozens of times. Due to the serious harm of lead, as well as the increasingly serious problems of environmental pollution and resource shortage, people pay more and more attention to the treatment of lead-acid battery wastewater. Therefore, what method to use to treat lead-acid battery wastewater has become an important research topic. In addition, due to the strengthening of people's awareness of environmental protection in recent years, as well as the increase in production costs and the intensification of market economic competition, companies have to consider saving and recycling raw material costs, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F9/06C02F1/52C02F1/66C02F1/44C02F1/28C02F1/72C02F1/50C02F1/42C02F1/70C02F1/469
Inventor 李德良王英华
Owner SHANGHAI LIGHT IND RES INST
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