CN-224199152-U - Mine acid heavy metal wastewater treatment system

CN224199152UCN 224199152 UCN224199152 UCN 224199152UCN-224199152-U

Abstract

The utility model relates to a mine acidic heavy metal wastewater treatment system, which is characterized in that one or more water body collecting units are used for collecting clear water and wastewater and guiding the clear water and wastewater to different wastewater collecting reservoirs and clear water collecting reservoirs, a sampling unit is arranged at the output end of the wastewater collecting reservoir, associated data of the wastewater are collected, a wastewater treatment unit matched between the output end of the wastewater collecting reservoir and the output end of the clear water collecting reservoir is urged to configure wastewater treatment reactants and act on the wastewater according to the associated data, the wastewater and reaction products of the wastewater after the wastewater treatment are precipitated by a subsequent precipitation tank, and a controller is used for controlling the operations of the sampling unit and the wastewater treatment unit. According to the utility model, through the cooperation between the controller and the sampling unit and the wastewater treatment unit, reactants (carbide slag) are accurately added, so that the treatment of the acid heavy metal wastewater is realized under the condition of reducing a large amount of manual investment, and the investment of electric power and equipment is further reduced by reasonably utilizing the topographic features, thereby being convenient for controlling the cost and increasing the practicability and rapidity.

Inventors

YANG LIHONG
XING YUQUAN
MENG NAN
WANG JIANWEI
YANG PENGTAO
LV WENLIANG

Assignees

中节能大地（杭州）环境修复有限公司

Dates

Publication Date: 20260505
Application Date: 20250530

Claims (10)

1. A mine acidic heavy metal wastewater treatment system is characterized by comprising: One or more water body collection units for collecting clean water and wastewater and guiding to different wastewater collection houses and clean water collection houses; The sampling unit is arranged at the output end of the wastewater collection warehouse and is used for collecting related data of wastewater; The wastewater treatment unit is matched between the output end of the wastewater collection warehouse and the output end of the clear water collection warehouse and is used for configuring reactants for wastewater treatment and acting on wastewater; The sedimentation tank is matched with the wastewater treatment unit and is used for precipitating the treated wastewater and reaction products thereof; and a controller is arranged in cooperation with the sampling unit and the wastewater treatment unit.
2. The mine acidic heavy metal wastewater treatment system of claim 1, wherein the output end of the water body collecting unit is higher than the input ends of the wastewater collecting warehouse and the clear water collecting warehouse.
3. The mine acidic heavy metal wastewater treatment system according to claim 1, wherein the sampling unit comprises a flow weir arranged at the output end of the wastewater collection warehouse, a first water quality sensor and a liquid level meter are arranged in cooperation with the flow weir, and the first water quality sensor and the liquid level meter are arranged in cooperation with the controller.
4. The mine acidic heavy metal wastewater treatment system as set forth in claim 3, wherein the wastewater treatment unit comprises a bin for placing reactants, a water conduit is arranged between the bin and the clean water collecting bin, the bin is communicated with the flow weir through a self-flow channel, and the self-flow channel is communicated with the flow weir and then connected to the sedimentation tank.
5. The mine acidic heavy metal wastewater treatment system according to claim 4, wherein the self-flow channel and the flow weir are communicated with one end of the reaction culvert, the other end of the reaction culvert is communicated with the space of the sedimentation tank, and one end of the reaction culvert, which is communicated with the self-flow channel and the flow weir, is higher than the other end of the reaction culvert, which is communicated with the sedimentation tank.
6. The system for treating acidic heavy metal wastewater in mines according to claim 5, wherein said free flowing channels and reactive culverts comprise at least 1 corner in the direction of transportation.
7. The system for treating acidic heavy metal wastewater in mines according to claim 5, wherein the unit time of the reaction culvert is larger than the unit time of the flow weir.
8. The mine acidic heavy metal wastewater treatment system of claim 7, wherein the cross-sectional area of the reaction culvert is larger than 1.5 times of the cross-sectional area of the largest incoming water amount, and the maximum flow rate of the flow weir is 1.5 times of the largest incoming water amount.
9. The mine acidic heavy metal wastewater treatment system of claim 1, wherein a second water quality sensor is arranged in cooperation with the sedimentation tank, and the second water quality sensor is arranged in cooperation with the controller.
10. The mine acidic heavy metal wastewater treatment system of claim 1, wherein the ratio of the volume of the sedimentation tank to the volume of the wastewater collection tank is greater than 2:1.

Description

Mine acid heavy metal wastewater treatment system Technical Field The utility model relates to the technical field of treatment of water, wastewater, sewage or sludge, in particular to a mine acidic heavy metal wastewater treatment system which can adapt to the topography of valleys. Background The waste rock yard and goaf produced in mining of sulfur-containing metal often expose minerals such as pyrite (FeS 2) contained in ore bodies to natural environment, and acid mine wastewater (Acid and Metalliferous Drainage, AMD) is continuously generated under the combined action of oxygen, water and microorganisms. AMD usually has a pH value lower than 4.0 and contains high concentration of sulfate and heavy metal ions such As iron (Fe), manganese (Mn), zinc (Zn), lead (Pb), cadmium (Cd), copper (Cu), arsenic (As) and the like, and if the AMD enters a river basin without collection and treatment, the concentration of metal ions in water and soil is too high and gradually accumulated, which forms serious threat to the safety of the ecological system of the river basin and the health of residents, and has long-term influence on the surface water environment. In order to reduce the influence of acid heavy metal wastewater on the surface water environment, the acid heavy metal wastewater needs to be treated for a long time, in the field of mine acid wastewater treatment, naOH or lime is generally adopted to perform neutralization reaction on mine acid wastewater, the price of NaOH medicament is higher, and further the treatment cost is higher, lime milk manufacturing equipment is required to convert lime into lime milk for lime neutralization of acid wastewater, and then the lime milk is mixed with the acid wastewater for reaction, so that long-term and large amount of manpower, electric power and material resource investment can be caused. Disclosure of utility model The utility model solves the problems existing in the prior art, and provides the mine acidic heavy metal wastewater treatment system which is suitable for the topography characteristics of valleys, solves the power problem by utilizing the topography characteristics, controls the reaction conditions and utilizes reactants in a recycling way, thereby solving the problems of cost investment and long-term stable operation and maintenance. The technical scheme adopted by the utility model is that the mine acidic heavy metal wastewater treatment system comprises: One or more water body collection units for collecting clean water and wastewater and guiding to different wastewater collection houses and clean water collection houses; The sampling unit is arranged at the output end of the wastewater collection warehouse and is used for collecting related data of wastewater; The wastewater treatment unit is matched between the output end of the wastewater collection warehouse and the output end of the clear water collection warehouse and is used for configuring reactants for wastewater treatment and acting on wastewater; The sedimentation tank is matched with the wastewater treatment unit and is used for precipitating the treated wastewater and reaction products thereof; and a controller is arranged in cooperation with the sampling unit and the wastewater treatment unit. Preferably, the output end of the water body collecting unit is higher than the input ends of the wastewater collecting warehouse and the clear water collecting warehouse. Preferably, the sampling unit comprises a flow weir arranged at the output end of the wastewater collection warehouse, a first water quality sensor and a liquid level meter are arranged in cooperation with the flow weir, and the first water quality sensor and the liquid level meter are arranged in cooperation with the controller. Preferably, the wastewater treatment unit comprises a bin for placing reactants, a water guide pipe is arranged between the bin and the clean water collecting bin, the bin is communicated with the flow weir through a self-flowing channel, and the self-flowing channel is communicated with the flow weir and then connected to the sedimentation tank. Preferably, the self-flow channel and the flow weir are communicated with one end of the reaction culvert, the other end of the reaction culvert is communicated with the space of the sedimentation tank, and one end of the reaction culvert, which is communicated with the self-flow channel and the flow weir, is higher than the other end of the reaction culvert, which is communicated with the sedimentation tank. Preferably, the gravity channels and the reaction culverts comprise at least 1 corner in the direction of conveyance. Preferably, the volume of fluid per unit time of the reaction culvert is greater than the volume of fluid per unit time of the flow weir. Preferably, the cross-sectional area of the reaction culvert is larger than 1.5 times of the cross-sectional area of the water with the maximum water inflow, and the maximum flow rate of the flow weir i