CN216039170U

CN216039170U - Break head creek river course water quality improvement system

Info

Publication number: CN216039170U
Application number: CN202122630996.2U
Authority: CN
Inventors: 费晓昕; 章波; 崔倩倩; 陈元庆
Original assignee: Huatian Engineering and Technology Corp MCC
Current assignee: Huatian Engineering and Technology Corp MCC
Priority date: 2021-10-30
Filing date: 2021-10-30
Publication date: 2022-03-15
Anticipated expiration: 2031-10-30

Abstract

The utility model discloses a system for improving river channel water quality of Duantou creeks. The method comprises the following steps: the device comprises a mixing tank arranged on one side of a river channel, wherein a mixing tank medicament adding device and a surge type stirrer are arranged in the mixing tank; a flocculation tank is arranged at the downstream of the mixing tank, and a flocculation tank medicament adding device and a surge type stirrer are arranged in the flocculation tank; more than one stage of sedimentation tank is arranged at the downstream of the flocculation tank; wherein, the supernatant of the sedimentation tank is communicated with the multi-stage ecological purification pond through a pipeline. The system is used for the Duantou creek river channel, the problem that a water source in the water quality of the river channel is difficult to improve by a water diversion and water regulation scheme is solved, the water quality is improved, the river channel is prevented from generating secondary pollution while the river channel is replenished, and the clean production principle is met. In addition, the method for improving the water quality has the advantages of simple structure, low cost and convenient operation and management. Because the treatment measures are arranged at the river side, the environment can be greened and beautified, and the landscape effect and the ecological benefit are achieved.

Description

Break head creek river course water quality improvement system

Technical Field

The utility model belongs to the technical field of environmental engineering, and particularly relates to a Duantou creek river channel water quality improvement system.

Background

Along with the development of national construction, industries such as industry, agriculture, farming and animal husbandry also develop at a high speed, and the construction of urban infrastructure has some short slabs, produces harmful effects to river course quality of water, for example, the distribution of rain and sewage is not thorough, initial rainwater, agricultural non-point source etc. especially involve the river course of a type: a Duantou creek is a river channel of the type, hydrodynamic force is insufficient, and good circulation cannot be generated between the river channel and other water bodies, so that the water quality of the river channel is poor under the condition of a pollution source, the function of a water body ecological system is insufficient, the urban image is seriously influenced, and the river channel is unfavorable for local economy.

At present, the water quality improvement method applicable to the Duantou creek water body mainly comprises the steps of water changing, water diversion and dilution, ecological restoration measures and chemical and biological agent adding. The method is generally used for changing the water quality of the river channel in emergency in a short time, and has certain limitation. For example, in northern areas, water is relatively short, the source of water is difficult to solve, ecological restoration measures such as a floating island and the like have slow effect and difficult effect guarantee, and the added medicament pollutes the original place of a river channel, so a new method is needed to solve the water quality problem of the Duantou creek.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a water quality improving system which is suitable and efficient and does not cause secondary pollution to the original environment of a river channel.

In order to achieve the purpose, the Duantou creek river channel water quality improving system comprises:

the device comprises a mixing tank arranged on one side of a river channel, wherein a mixing tank medicament adding device and a surge type stirrer are arranged in the mixing tank;

a flocculation tank is arranged at the downstream of the mixing tank, and a flocculation tank medicament adding device and a surge type stirrer are arranged in the flocculation tank;

more than one stage of sedimentation tank is arranged at the downstream of the flocculation tank; wherein, the supernatant of the sedimentation tank is communicated with the multi-stage ecological purification pond through a pipeline.

Furthermore, a water outlet of the multi-stage ecological purification pond is provided with a back-supplementing pipeline communicated with a river channel, and the back-supplementing pipeline is provided with an online water quality monitoring device. So as to detect the water quality purified by the multi-stage ecological purification pond.

Furthermore, a lifting pump is arranged in the river channel, and a water outlet of the lifting pump is arranged in the mixing pool.

Further, the method for improving the river channel water quality of the Duantou creek comprises the following steps:

introducing water from a branchia creek, introducing the water into a mixing tank, and adding a medicament into the mixing tank through a dosing room;

uniformly mixing the mixture under the stirring of a surge type stirrer and then feeding the mixture into a flocculation tank;

adding an on-line diluted medicament into a flocculation tank through a medicament adding system, and flocculating under the stirring of a surging stirrer;

adding medicine, stirring, mixing, feeding into a first-stage sedimentation tank and a second-stage sedimentation tank, and performing gravity sedimentation; wherein, supernatant liquor of the sedimentation tank enters a multi-stage ecological purification pond, and is subjected to ecological enhancement treatment to replenish river channels;

furthermore, the water quality of the replenishing riverway is monitored in real time by a water quality on-line monitoring device.

Further, the dosing system is divided into a PAC or polyferric dosing system and a PAM dosing system, wherein the dosing system in the mixing tank is PAC or polyferric reagent, and the dosing system in the flocculation tank is used for dosing PAM which is diluted on line.

Furthermore, each mixing tank is divided into 4 tank bodies in equal parts, an impermeable membrane is fully paved, and a surge type stirrer is arranged in the mixing tank.

Furthermore, each flocculation tank is divided into 4 tank bodies in equal parts, an impermeable membrane is fully paved, and a surge type stirrer is arranged in the flocculation tank.

Furthermore, the ecological purification pond is a multi-stage ecological purification pond.

The system is used for the Duantou creek river channel, the problem that a water source in the water quality of the river channel is difficult to improve by a water diversion and water regulation scheme is solved, the water quality is improved, the river channel is prevented from generating secondary pollution while the river channel is replenished, and the clean production principle is met. In addition, the method for improving the water quality has the advantages of simple structure, low cost and convenient operation and management. Because the treatment measures are arranged at the river edge, the environment can be greened and beautified, and the ecological landscape has landscape effect and ecological benefit and has strong adaptability to water quality and water quantity.

Drawings

FIG. 1 is a flow chart of a Duantou creek water quality improving system of the utility model;

FIG. 2 is a hydraulic elevation diagram of the water quality improvement project of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in figures 1-2, each treatment tank has a certain height difference, so that the river water can smoothly flow to the next treatment tank due to gravity. The water flow sequentially comprises a mixing tank, a flocculation tank, a sedimentation tank, a sludge drying bed and an ecological purification pond.

Leading water from a branching creek through a lift pump, leading the water into a mixing tank, adding a medicament in the mixing tank by a dosing room, uniformly mixing the water under the stirring of a surge type stirrer and then entering a flocculation tank, adding a medicament diluted on line in the flocculation tank through a dosing system, flocculating under the stirring of the surge type stirrer, adding the medicament and uniformly mixing the medicament and the medicament, then entering a first-stage sedimentation tank and a second-stage sedimentation tank, depositing the mixture by gravity, enabling supernatant of the later sedimentation tank to enter a multistage ecological purification pond, performing ecological strengthening treatment and then replenishing a riverway, monitoring the water quality of the replenishing riverway in real time by a water quality on-line monitoring device, and repeating the steps to enable the water quality of the riverway to reach the standard.

Specific examples are as follows:

the river is a Duantou creek in a county, and the received sewage mainly comprises domestic sewage and agricultural non-point sources.

The main structural units included in the project are as follows:

non-clogging submersible sewage pump: 900m³2 sets of submersible sewage pump (360 m)³The submersible sewage pump comprises 1 set of/h submersible sewage pump, 8m of lift and a matched electric control system.

PAC or poly iron adding system 4 sets: diameter phi 3.15, effective volume 30m³The chemical pump comprises a diaphragm metering pump (medicament feeding pump), a chemical centrifugal pump (medicament conveying pump), a liquid level switch, an electrical control system, a medicament feeding pipeline system, a stirring motor, a stirring paddle blade and the like which are matched with a tank body. Diaphragm metering pump 5 sets (4 spare 1), flow: q is 0-500L/h, frequency conversion, pressure: h-40 m. 1 chemical centrifugal pump, wherein Q is 60m3/H, and H is 8 m.

PAM dosing system solution preparation facilities takes on-line dilution, and the medicament dissolved volume: 1-2 kgPAM dry powder/h, solution preparation capacity: 3000L/h, preparation concentration: 1 per mill, adding concentration: 0.5-1 per mill, and the curing time of the medicament: not less than 2.0 h. 3 dosing pumps, an electrical control system and a dosing pipeline system are matched with the tank body. The dosing pump delivers liquid: 0.5-1 per mill of polyacrylamide solution.

1 mixed pool, 4 are equallyd divide equally to every seat, and PAC is thrown to the end of intaking to through surge formula mixer misce bene, mixing time is 11.52min, and the size is 10 x 1.0m, simple and easy soil box, full bed prevention of seepage membrane, side slope 1: 1.

1 flocculation basin, every is equallyd divide 4, and PAM is thrown to the end of intaking to fully flocculate through surge formula mixer, flocculation reaction time is 25.92min, and the size is 15 x 1.0m, and simple and easy soil pit fully spreads prevention of seepage membrane, side slope 1: 1.

2, a settling pond for removing solid suspended matters in water by gravity, wherein the hydraulic retention time is 17.09h, and the surface load is 0.12m³/(m²h) The design of brick mud pump pit 2X 1m in each pond, interior mud pump of establishing, the size is 136X 70X 2m respectively, 100X 80X 2m, simple and easy soil reservoir, full-spread prevention of seepage membrane, side slope 1: 1.

2 seats of the ecological purification pond, removes pollutants by physical, chemical and biological methods, and has the area of 30600m²The hydraulic retention time is 24hSimple soil pond, effective water depth 1.5-1.8m, side slope 1: 1, planting emergent aquatic plants, submerged plants and phytoplankton, and putting aquatic animals and the like.

1 sludge drying bed for sludge dewatering by means of permeation, evaporation and skimming and with an area of 1000m²Simple soil pond, 10-day drying period, 100m for each block²。

The area of the medicine adding room is 300m at 1 time²And constructing a precast concrete slab and a movable board house.

The water quality on-line monitoring equipment 1 set has the detection indexes of pH, temperature, conductivity, turbidity, dissolved oxygen, CODcr, ammonia nitrogen and TP.

The process flow of the method is adopted to treat Duantou creek river channel water bodies, and the comparison of the water quality before and after treatment is implemented as follows

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

The present invention is not described in detail, but is known to those skilled in the art.

Claims

1. A Duantou creek river course water quality improvement system is characterized in that the system comprises:

2. The system for improving the water quality of the river channel of the Duantou creek as claimed in claim 1, wherein a recharging pipeline communicated with the river channel is arranged at a water outlet of the multistage ecological purification pond, and an online water quality monitoring device is arranged on the recharging pipeline.

3. The system of claim 1, wherein a lift pump is disposed in the river, and a water outlet of the lift pump is disposed in the mixing tank.