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Equipment for removing lead in wastewater of lead storage battery

A lead-acid storage battery and lead removal technology, which is applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of small footprint and inability to meet the standard stably, and achieve the goal of occupying an area of Small area, shortened settling time, good removal effect

Active Publication Date: 2014-08-27
NANJING GW ENVIRONMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a lead-removing equipment for lead-acid battery wastewater, which is simple in operation, high in treatment efficiency, small in floor space, and integrates high-efficiency lead-removal technology, sedimentation technology and filtration technology. The lead-acid battery wastewater lead removal equipment solves the problem that the lead-containing wastewater in the lead-acid battery industry cannot stably meet the standard after treatment and produces a large amount of hazardous waste

Method used

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  • Equipment for removing lead in wastewater of lead storage battery
  • Equipment for removing lead in wastewater of lead storage battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 and figure 2 Shown is a lead-removing equipment 1 for lead-acid battery wastewater, comprising: a primary reaction zone 3, a secondary reaction zone 4, a sedimentation zone 6, a filter zone 7 and a water outlet zone 13, and the primary reaction zone 3 side The upper end of the wall is provided with a water inlet 2, and the primary reaction zone 3 is connected with the secondary reaction zone 4 through the primary reaction zone water outlet 25 at the lower end, and the secondary reaction zone 4 is connected with the secondary reaction zone water outlet 24 at the upper end. The settling area 6 is connected, and the settling area 6 is connected with the filter area 7, and the water is distributed by overflowing water, and the filter area 7 is connected to the two sides of the water outlet area 12 through the filter area outlet pipes 26 at the bottom of both sides. connection; wherein the primary reaction zone 3 is also connected to the dosing device 16 o...

Embodiment 2

[0032] According to embodiment 1, a kind of lead-acid storage battery wastewater high-efficiency deleading reactor processes the process and results of lead-acid storage wastewater as follows, the lead-acid battery factory production wastewater lead content is 32.6mg / L, and the waste water volume is 20m 3 / h, drainage 8h per day, the waste water is collected and processed through lead battery waste water high-efficiency deleading reactor 1, then pumped up and enters the primary reaction zone 3 through the water inlet 2, and the inflow flow rate is 10m 3 / h, while the lead-removing agent dosing device 16 connected to the primary reaction zone 3 adds the lead-removing agent, the used lead-removing agent sodium sulfide content is 25%, and the polyaluminum chloride content is 20%, and the dosage is based on sodium sulfide and The lead content (mass ratio) in the wastewater is 8:1, and the dosage of lead removal agent is 1.0L / m 3 , stirred by the stirring device 18, the waste water ...

Embodiment 3

[0034] According to embodiment 1, a kind of lead-acid battery waste water high-efficiency deleading reactor processes lead-acid battery waste water process and result as follows, a certain lead-acid battery factory produces waste water lead content 51.4mg / L, and waste water volume is 15m 3 / h, drainage 10h per day, after the waste water is collected, it will be processed through the high-efficiency deleading reactor 1 for lead-acid battery waste water, and will be lifted by the pump to enter the primary reaction zone 3 through the water inlet 2, and the inflow flow rate is 10m 3 / h, while the lead-removing agent dosing device 16 connected to the primary reaction zone 3 adds the lead-removing agent, the used lead-removing agent sodium sulfide content is 50%, and the polyaluminum chloride content is 20%, and the dosage is based on sodium sulfide and The lead content (mass ratio) in the waste water is added at 5:1, and the dosage of the lead removal agent is 0.5L / m 3 , stirred by...

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Abstract

The invention discloses equipment for removing lead in wastewater of a lead storage battery. The equipment is characterized by comprising a first-stage reaction zone, a second-stage reaction zone, a settling zone, a filtering zone and an effluent zone, wherein a water inlet is formed in the upper end of the side wall of the first-stage reaction zone; the first-stage reaction zone is connected with the second-stage reaction zone by virtue of a first-stage reaction zone water outlet in the lower end of the first-stage reaction zone; the second-stage reaction zone is connected with the settling zone by virtue of a second-stage reaction zone water outlet; the settling zone is connected with the filtering zone and is used for distributing water in an overflowing water discharge mode; the filtering zone is connected with two sides of the effluent zone by virtue of filtering zone water outlet tubes at bottoms on two sides of the filtering zone; the first-stage reaction zone is further connected with a lead removing agent adding device; the second-stage reaction zone is connected with a coagulation aid agent adding device. The equipment is simple to operate, high in treatment efficiency and small in occupied area, an efficient lead removing technique, a settlement technique and a filtration technique are integrated, and the problems that lead-containing wastewater of the conventional lead storage battery industry cannot stably meet the standard after being treated and a great amount of hazardous wastes are generated are solved.

Description

technical field [0001] The invention relates to lead-removing equipment for lead-acid battery waste water, mainly for lead-acid battery industry waste water, in particular to a lead-removal device for lead-acid battery waste water. Background technique [0002] Lead battery wastewater is divided into production wastewater and domestic sewage. Production wastewater mainly comes from lead-containing and acid-containing wastewater generated during the production process of products, from processes such as acid mixing, coating, chemical formation, or ventilation and dust removal water. Contains lead powder, molten lead, lead sulfate, sulfuric acid and some other organic additives and engine oil; lead-containing and acid-containing waste water produced by auxiliary departments such as battery laboratories and battery analysis rooms for battery product testing and analysis rooms; employee work clothes cleaning water , employee shower wastewater, as well as various production proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
Inventor 韩正昌邵朱强王志磊李广明马军军何建龙刘臻臻许鹏飞
Owner NANJING GW ENVIRONMENT ENG
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