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Thallium-ion-containing wastewater purification system

A technology for wastewater purification and ionization, applied in mining wastewater treatment, water pollutants, multi-stage water treatment, etc., can solve the problems of increasing wastewater salinity and high treatment costs

Pending Publication Date: 2020-06-26
湖南鑫科思生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The U.S. Environmental Protection Agency recommends the use of activated alumina and ion exchange to treat wastewater containing thallium by adsorption and separation, but the treatment cost is high; saturated sodium chloride solution can promote the effective precipitation of thallium in wastewater in the form of thallium chloride, but this method will increase the salinity, it is difficult to apply to the actual industrial production process

Method used

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  • Thallium-ion-containing wastewater purification system
  • Thallium-ion-containing wastewater purification system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A purification system for wastewater containing thallium ions, comprising a reaction-sedimentation integrated machine 1, a reaction pool 2 is arranged inside the reaction-sedimentation machine 1, and a clean water tank 4 is connected to the right side of the reaction pool 2 through a through hole 3, and its left side A water inlet 5 (that is, the water inlet 5 of the integrated reaction and sedimentation machine 1) is provided above the side wall, a sedimentation tank 6 is provided below the clean water tank 4, and a sloping plate 7 is provided between the two inner side walls , and the top of the right side wall is provided with a water outlet 8 (that is, the water outlet 8 of the reaction-sedimentation machine 1), and the bottom of the sedimentation tank 6 is provided with a mud discharge port 9 (that is, the discharge port 9 of the reaction-sedimentation machine 1) Mud mouth 9), the top of the reaction pool 2 is connected with the first chemical pool 10, the second ch...

Embodiment 2

[0032] The difference between this embodiment and Embodiment 1 is that the pH callback discharge pool 16 is also connected with an adsorption system through a pipeline, and the adsorption system includes a heavy metal ion treatment system and an ultrafiltration system 23 connected in sequence through pipelines, and the ultrafiltration The system 23 can use ultrafiltration membranes to treat microorganisms, heavy metals, etc. in water, and further improve the wastewater purification effect.

[0033] The heavy metal ion treatment system includes a housing 24 and a first adsorption layer 25, a second adsorption layer 26 and a third adsorption layer 27 which are arranged in the housing 24 and arranged sequentially from top to bottom. The middle part of the housing 24 A partition 28 vertically set up is provided, the top of the partition 28 is connected with the top wall of the housing 24, and its bottom is not connected with the bottom wall of the housing 24 (the length of the part...

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Abstract

The invention discloses a thallium-ion-containing wastewater purification system. The system comprises a reaction and precipitation all-in-one machine, a first reagent tank, a second reagent tank, a third reagent tank and a fourth reagent tank, wherein the first reagent tank, the second reagent tank, the third reagent tank and the fourth reagent tank are connected with the reaction sedimentation tank all-in-one machine through pipelines. A water inlet of the reaction and precipitation all-in-one machine is connected with an adjusting tank through a pipeline, a water outlet of the reaction andprecipitation all-in-one machine is connected with a pH callback discharge tank through a pipeline, a sludge outlet of the reaction and precipitation all-in-one machine is connected with a sludge storage tank through a pipeline, and the sludge storage tank is connected with a rotary kiln through a pipeline. The purification system disclosed by the invention is high in treatment capacity, the dailywater treatment capacity can reach 300m <3>, and the wastewater treatment capacity and treatment efficiency are improved; the sludge treated by the wastewater purification system can be discharged into the rotary kiln, so that the comprehensive utilization rate of the sludge is improved, and the loss of valuable metals in the sludge is reduced.

Description

technical field [0001] The invention relates to the field of purification of thallium ion wastewater, in particular to a system for purifying wastewater containing thallium ions. Background technique [0002] In nature, thallium (Tl) is widely distributed in various water bodies, but its content is generally very low, while Tl is highly concentrated in mine wastewater and smelting industry discharge wastewater, and its content in rivers, lakes, and groundwater in mining areas is abnormally high, forming relatively high Severe regional Tl pollution. There are two oxidation states of Tl in natural water: Tl + and Tl 3+ , Tl + Is the main form of existence, easy to migrate to a longer distance with the flow of groundwater or surface water, only under extremely strong oxidation conditions Tl 3+ to exist. [0003] Thallium (Tl) is a typical toxic metal element, which is more toxic to mammals than Hg, Cd, Cu, Pb, Zn and other elements, and the fatal dose to human body is 0.1-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F101/20C02F103/10
CPCC02F9/00C02F2101/20C02F1/66C02F1/52C02F2301/08C02F1/001C02F1/283C02F1/288C02F1/444C02F2103/10
Inventor 杨晚席
Owner 湖南鑫科思生物科技有限公司