CN216513195U - Low-carbon and energy-saving riverway in-situ flocculation precipitation treatment system - Google Patents

Low-carbon and energy-saving riverway in-situ flocculation precipitation treatment system Download PDF

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CN216513195U
CN216513195U CN202122803006.0U CN202122803006U CN216513195U CN 216513195 U CN216513195 U CN 216513195U CN 202122803006 U CN202122803006 U CN 202122803006U CN 216513195 U CN216513195 U CN 216513195U
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dam
gate
flocculation
area
water
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张瑞斌
刘清泉
潘卓兮
陈露莹
王乐阳
奚道国
祖白玉
徐强强
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Jiangsu Long Leaping Engineering Design Co ltd
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Jiangsu Long Leaping Engineering Design Co ltd
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Abstract

The utility model provides a low-carbon energy-saving riverway in-situ flocculation precipitation treatment system, which relates to the field of riverway sewage treatment, and comprises a first retaining dam, a first water-passing dam, a second water-passing dam and a second retaining dam which are sequentially arranged at intervals along the riverway water flow direction, so as to form a flocculation area, a precipitation area and a water outlet area; wherein the flocculation area is provided with a water inlet pipeline and a dosing unit for dosing a flocculating agent into the flocculation area; the sedimentation area is provided with a sludge discharge unit; the water outlet area is provided with a drainage pipeline and a lifting pump arranged on the drainage pipeline, and the outlet end of the drainage pipeline is communicated to a peripheral river channel outside the treatment area. This technique make full use of river course advantage constructs the flocculation and precipitation system through retaining dam and dam, and retaining dam and permeable dam are rotatable 90, have ensured the river course function of traveling flood, practice thrift engineering material, reduce construction cycle, greatly reduce the energy consumption, reduce carbon and discharge.

Description

Low-carbon and energy-saving riverway in-situ flocculation precipitation treatment system
Technical Field
The utility model relates to the field of river sewage treatment, in particular to a low-carbon and energy-saving river in-situ flocculation precipitation treatment system.
Background
The diversion water source is mostly required to be treated in river regulation and water replenishing engineering, a flocculation tank and a sedimentation tank are generally built near a river, medicines are added into the flocculation tank and the sedimentation tank, and the treated water is transferred into the river through a diversion pump station, so that the mode is large in occupied area and high in construction cost.
Therefore, the in-situ sand setting system for the river channel can automatically control the medicine output, the arranged retaining dam can rotate, the flood discharge function of the river channel is not affected, large circulation of water in a section area is formed, and the occupied area is small. Meanwhile, the river channel is fully utilized as a container, engineering materials are saved, the construction period is shortened, and the low-carbon and energy-saving effects are achieved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-carbon and energy-saving riverway in-situ flocculation and precipitation treatment system, which is characterized in that a flocculation and precipitation system is constructed by directly utilizing the advantages of a riverway, the structures of a water retaining dam and a water passing dam are flexibly arranged, functional areas can be divided, flood discharge of the riverway is not influenced, and the land area of a riverbank is utilized to the minimum.
In order to achieve the above purpose, the utility model provides the following technical scheme: a low-carbon energy-saving riverway in-situ flocculation precipitation treatment system comprises a first retaining dam, a first passing dam, a second passing dam and a second retaining dam which are sequentially arranged at intervals along the riverway water flow direction, wherein the first retaining dam, the first passing dam, the second passing dam and the second retaining dam sequentially form a flocculation area, a precipitation area and a water outlet area, and the heights of the first passing dam and the second passing dam are lower than those of the first retaining dam and the second retaining dam;
the flocculation area is provided with a water inlet pipeline and a dosing unit, and the dosing unit is used for dosing a flocculating agent to the flocculation area;
the sedimentation zone is provided with a sludge discharge unit, the sludge discharge unit comprises a sludge pump and a sludge discharge pipe communicated with the sludge pump, and the outlet end of the sludge discharge pipe is positioned on the bank side of the low-carbon energy-saving river channel;
the water outlet area is provided with a drainage pipeline and a lift pump, the lift pump is arranged on the drainage pipeline, and the outlet end of the drainage pipeline is communicated to any peripheral river channel outside the in-situ flocculation precipitation treatment system.
Further, the first retaining dam, the first passing dam, the second passing dam and the second retaining dam have the same structure and respectively comprise a sand blocking bank, a gate pier, a folding part and a supporting part;
the sand blocking ridges are vertically arranged at the bottom of the river channel, and the upstream surfaces of the sand blocking ridges are arc surfaces opposite to the water flow direction; the gate piers are positioned on the opposite sides of the arc-shaped surface of the sand blocking ridge, and the end parts of the gate piers are abutted against the sand blocking ridge; the gate is arranged above the gate pier, a cylindrical rotating shaft is arranged at the bottom end of the gate, and the cylindrical rotating shaft is fixedly arranged on the upper surface of the gate pier; the supporting part is arranged on the side, far away from the sand blocking ridge, of the gate pier, the end part of the supporting part is connected to the gate, and the gate is at least in two position states of being vertical to the upper surface of the gate pier and being parallel to the upper surface of the gate pier on the cylindrical rotating shaft; the folding part is arranged between the sand blocking ridge and the gate and is positioned above the gate pier, and two ends of the folding part are respectively connected with the gate and the sand blocking ridge;
when the gate is in a position state that the gate is parallel to the upper surface of the gate pier on the cylindrical rotating shaft, the folding part is unfolded, and a closed area is defined by the unfolded surface formed by the folding part, the opposite surface of the arc-shaped surface on the sand blocking ridge, the gate, the upper surface of the gate pier and the two side surfaces of the river channel.
Further, the dosing unit comprises a control center, a plurality of medicine storage tanks, a plurality of medicine inlet pipes and a plurality of medicine outlet pipes;
the number of the medicine inlet pipes corresponds to that of the medicine storage tanks, any medicine inlet pipe is connected with one medicine storage tank, and a feeding pump is arranged on any medicine inlet pipe; the medicine outlet pipe comprises a main pipe and a plurality of branch pipes communicated with the main pipe, the number of the branch pipes corresponds to that of the medicine storage tanks, and the inlet end of any branch pipe is communicated with the bottom end of the medicine storage tank; the total pipe of the medicine outlet pipe extends to the bottom of the flocculation area, a metering pump is arranged on any branch pipe of the medicine outlet pipe, and the metering pump and the feeding pump are in signal connection at a control center.
Furthermore, the water outlet area is provided with a water quality detector for measuring the water quality of the water outlet area, and the water quality detector is in signal connection with the control center, so that the control center can control the opening of the metering pump according to the detection result of the water quality detector and control the dosage of any branch pipe.
Further, the outlet end of the dosing pipeline is connected with the outlet end of the water inlet pipeline through a Y-shaped structure to form a mixing pipe; the outlet end of the mixing pipe is close to the bottom surface of the flocculation area.
Further, a push type stirrer is installed at the bottom end of the mixing pipe.
Furthermore, the first retaining dam and the second retaining dam are equal in size, and the first through dam and the second through dam are equal in size;
defining the height of the gate in the first retaining dam when the gate is installed perpendicular to the bottom of the river channel to be H1, and the height of the gate in the first passing dam when the gate is installed perpendicular to the bottom of the river channel to be H2, wherein H1 is H0+0.3m, H2 is H0-0.2m, and H0 is the normal water level of the river channel;
furthermore, the width of the sand blocking bank in each of the first retaining dam, the first passing dam, the second passing dam and the second retaining dam is equal to the width of the retaining dam or the passing dam where the sand blocking bank is located.
Further, the river water flow direction is defined as the length direction, and the lengths of the flocculation zone, the sedimentation zone and the water outlet zone are respectively L1, L2 and L3, so that L2 is more than L3 and more than L1.
Furthermore, a buried sludge treatment unit is arranged on the river bank of the river channel, and comprises a sludge pool, a sludge concentration and dehydration integrated machine and a dry sludge lifting mechanism; the outlet end of the sludge discharge pipe is communicated to a sludge tank, and sludge in the sludge tank is dried and dehydrated by a sludge concentration and dehydration integrated machine and then is sent out of the buried sludge treatment unit by a dry sludge lifting mechanism.
According to the technical scheme, the technical scheme of the utility model has the following beneficial effects:
the utility model discloses a low-carbon energy-saving riverway in-situ flocculation precipitation treatment system, which comprises a first retaining dam, a first passing dam, a second passing dam and a second retaining dam which are sequentially arranged at intervals along the riverway water flow direction, wherein the heights of the first passing dam and the second passing dam are lower than those of the first retaining dam and the second retaining dam, and a flocculation area, a precipitation area and a water outlet area are sequentially formed; wherein the flocculation area is provided with a water inlet pipeline and a dosing unit, and the dosing unit is used for dosing a flocculating agent into the flocculation area; the sedimentation area is provided with a sludge discharge unit; the water outlet area is provided with a drainage pipeline and a lift pump arranged on the drainage pipeline, and the outlet end of the drainage pipeline is communicated to a peripheral river channel outside the treatment area. The utility model fully utilizes the advantages of the river channel, constructs the flocculation and sand settling system, does not need to occupy river bank land in large area, saves engineering materials, reduces construction period, greatly reduces energy consumption and reduces carbon emission.
According to the utility model, the gates of the retaining dam and the water passing dam are designed into rotatable structures, so that the gates can be used for dividing functional areas along a river channel and simultaneously the flood discharge of the river channel is not influenced; the dosing unit adopts a mode that a metering pump and a water quality detector are in signal connection with a control center, so that the intelligent control function that the control center automatically controls the dosage according to a water quality detection result is realized. In addition, the water retaining dam and the water passing dam are provided with the sand blocking ridges and the folding parts, so that the sand is fully blocked from flowing into the position of the rotatable part at the bottom of the gate, and the service lives of the gate and the dam body are prolonged.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a cross-sectional view of an in situ flocculation and precipitation system of the present invention;
FIG. 2 is a plan view of the operation of the in situ flocculation and sedimentation system of the present invention.
In the figure, the specific meaning of each mark is:
1-a flocculation zone; 11-a water inlet pipe; 12-a propeller agitator; 2-a precipitation zone; 21-a mud pump; 22-a sludge discharge pipe; 3-a water outlet area; 31-a lift pump; 32-a drain line; 33-a water quality detector; 4-retaining a dam; 41-sand blocking ridge; 42-a gate; 43-a support bar; 44-folding a plate; 45-gate pier; 46-a cylindrical spindle; 5-passing through a dam; 6-a dosing unit; 61-a medicine storage tank; 62-medicine outlet pipe; 63-a medicine inlet pipe; 64-a charge pump; 65-a metering pump; 7-a control center; 8-an in-situ flocculation precipitation treatment system, 81-an energy station; 82-a river channel; 83-water source heat pump water outlet pipe; 84-dosing chamber; 85-sludge treatment unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Similarly, the singular forms "a," "an," or "the" do not denote a limitation of quantity, but rather denote the presence of at least one, unless the context clearly dictates otherwise. The terms "comprises," "comprising," or the like, mean that the elements or items listed before "comprises" or "comprising" encompass the features, integers, steps, operations, elements, and/or components listed after "comprising" or "comprising," and do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may also be changed accordingly.
Based on the existing river regulation and water supplement engineering, a flocculation tank and a sedimentation tank are built near a river, medicines are added into the flocculation tank and the sedimentation tank, and a water guide pump is used for regulating the treated water into the river to treat the water, so that a large area of a river bank is occupied, and the construction cost is higher; therefore, the utility model provides a treatment system for directly carrying out in-situ flocculation and precipitation on a river channel, which minimizes the area of the river bank, and not only can divide functional areas but also does not influence flood discharge of the river channel by flexibly setting the structures of the water retaining dam and the water passing dam.
The low-carbon energy-saving riverway in-situ flocculation precipitation treatment system disclosed by the utility model is further specifically described by combining the embodiment shown in the attached drawing.
The embodiment discloses a low-carbon energy-saving riverway in-situ flocculation and precipitation treatment system, which comprises a first retaining dam, a first water passing dam, a second water passing dam and a second retaining dam which are sequentially arranged at intervals along the riverway water flow direction, wherein a flocculation area 1, a precipitation area 2 and a water outlet area 3 are sequentially formed, and the function zoning is realized. In order to facilitate the water stored in the flocculation zone 1 to flow to the sedimentation zone 2 and the water outlet zone 3 and obtain a better sediment sedimentation effect, during design, the heights of the first water passing dam and the second water passing dam are lower than the heights of the first water retaining dam and the second water retaining dam, and the length relations of the flocculation zone 1, the sedimentation zone 2 and the water outlet zone 3 along the water flow direction of the river channel are that the length of the sedimentation zone 2 is greater than that of the water outlet zone 3, and the length of the water outlet zone 3 is greater than that of the flocculation zone 1.
In order to realize the efficient flocculation and precipitation effect and guarantee the continuous operation of each area, each functional area is designed respectively. Specifically, a water inlet pipeline 11 and a dosing unit 6 are arranged in the flocculation area 1, and the dosing unit 6 is used for adding a flocculating agent into the flocculation area 1, so that river water entering the flocculation area 1 is gathered under the action of the flocculating agent and sinks to the bottom of the flocculation area 2, and separation of water and sediment is achieved. The sedimentation zone 2 is provided with a sludge discharge unit which consists of a sludge pump 21 and a sludge discharge pipe 22 communicated with the sludge pump 21, and the outlet end of the sludge discharge pipe 22 is positioned on the bank side of the low-carbon and energy-saving river channel; when the sludge pump works, when the sludge in the settling area 2 is accumulated to the preset thickness at the bottom of the settling area 2, the sludge pump 21 is started to drain the sludge or regularly drain the sludge. The water outlet area 3 is provided with a water outlet pipeline 32 and a lifting pump 31 arranged on the water outlet pipeline 32, the water outlet pipeline 32 is used for returning the flocculated and precipitated water to the river channel, and therefore the outlet end of the water outlet pipeline is communicated to any peripheral river channel outside the in-situ flocculation and precipitation treatment system. Through the process, the processes of flocculating agent throwing, sediment sedimentation emptying and purified water conveying are directly realized in the river channel, a flocculation pool and a sedimentation pool do not need to be built on the river bank, and the technical effect of circular reciprocating treatment on the river channel water body in the river channel area is achieved.
In order not to obstruct the normal flood discharge of the river, the structure of the retaining dam 4 and the passing dam 5 is designed to be changeable according to the requirement in the embodiment. Specifically, as shown in fig. 1, the first retaining dam, the first passing dam, the second passing dam and the second retaining dam have the same structure, and each of the first retaining dam, the first passing dam, the second passing dam and the second retaining dam includes a sand trap sill 41, a gate 42, a gate pier 45, a folding portion and a support portion; the sand blocking ridge 41 is vertically arranged at the bottom of the river channel, and the upstream surface of the sand blocking ridge is an arc surface opposite to the water flow direction; the design of the 41 arcwall faces of sand blocking ridges makes river course upstream water flow contact with the upstream face when flowing downstream at first, and water flow has radial and vertical velocity of flow in addition to having the longitudinal flow rate under the combined action of gravity and centrifugal inertia force to it forms the spiral flow to add, makes river course top layer water flow to each functional area in proper order, thereby carries out flocculating settling again to the top layer clear water that has handled through front end silt.
The gate piers 45 are positioned at the opposite sides of the arc-shaped surface of the sand blocking bank 41, and the end parts of the gate piers are abutted against the sand blocking bank 41; the gate 42 is arranged above the gate pier 45, the bottom end of the gate 42 is provided with a cylindrical rotating shaft 46, and the cylindrical rotating shaft 46 is fixedly arranged on the upper surface of the gate pier 45; the supporting part is arranged on the side of the gate pier 45 far away from the sand trap 41, the end part of the supporting part is connected with the gate 42, and the gate 42 at the cylindrical rotating shaft at least has two position states of being vertical to the upper surface of the gate pier 45 and being parallel to the upper surface of the gate pier 45; the folding part is arranged between the sand trap 41 and the gate 42 and is positioned above the gate pier 45, and the two ends of the folding part are respectively connected with the gate 42 and the sand trap 41; therefore, when the gate 42 is in a position parallel to the upper surface of the gate pier 45 on the cylindrical rotating shaft, the folded part is flat, and a flat surface formed by the folded part and the opposite surface of the arc-shaped surface on the sand trap 41, the upper surface of the gate 42 and the gate pier 45 and the two side surfaces of the river channel enclose a closed area; this closed area can effectively prevent rivers and silt to get into near cylindrical pivot 46 when the flood discharge is washed the silt, avoids near a large amount of silt to pile up cylindrical pivot 46, blocks up cylindrical pivot 46, and then influences the life of gate 42.
In the embodiment shown in the drawings, in order to simplify the manufacture of the parts of the system, the first dam and the second dam serving as the dam 4 are equal in size, the first dam and the second dam serving as the dam 5 are equal in size, and the widths of the sand dams 41 in the dam 4 and the dam 5 are respectively equal to the widths of the dam 4 and the dam 5; and the height H1 of the gate 42 in the retaining dam 4 when being installed vertical to the bottom of the river channel is higher than the height H2 of the gate 42 in the retaining dam 5 when being installed vertical to the bottom of the river channel, and H1 is generally selected to be 0.3m higher than the normal water level of the river channel, and H2 is selected to be 0.2m lower than the normal water level of the river channel. The fold selects a fold plate 44, such as a grid plate; the support part generally comprises a plurality of telescopic support rods 43 which are arranged in parallel, and the telescopic support rods 43 drive the gate 42 to rotate, so that the position state of the gate 42 is changed.
The setting of the medicine adding unit 6 is different by combining the implementation environment of the in-situ flocculation and precipitation treatment system. For example, the dosing unit 6 in the embodiment of fig. 1 comprises a control center 7, a plurality of drug storage tanks 61, a plurality of drug inlet pipes 63 and drug outlet pipes 62. The number of the medicine inlet pipes 63 corresponds to that of the medicine storage tanks 61, any medicine inlet pipe 63 is communicated with one medicine storage tank 61, and a feeding pump 64 is arranged on any medicine inlet pipe 63; the medicine outlet pipe 62 comprises a main pipe and a plurality of branch pipes communicated with the main pipe, the number of the branch pipes corresponds to that of the medicine storage tanks 61, and the inlet ends of any branch pipe are communicated with the bottom ends of the medicine storage tanks 61; during installation, the main pipe of the medicine outlet pipe 62 extends towards the bottom of the flocculation area 1, a metering pump 65 is arranged on any branch pipe of the medicine outlet pipe 62, and the metering pump 65 and the feeding pump 64 are in signal connection with the control center 7. Usually, the control center is disposed in a manual control room, and can be manually and actively selected to be turned on or off. For example, a plurality of drug storage tanks 61 are provided, and any one drug storage tank 61 stores one flocculation reagent, and a plurality of flocculation reagents are used together through branch pipes to a main pipe; or only one medicine storage tank 61 is arranged for storing various mixed flocculating agents, and the medicine outlet pipe 62 can be used by only adopting a main pipe.
When a plurality of drug storage tanks 61 are used, the flocculating agents which can be stored separately include different drugs such as flocculating agents, coagulant aids, disinfectants and the like, preferably, the flocculating agents are food-grade improved flocculating agents, and the coagulant aids are PAM polyacrylamide. In this way, the amount of each flocculating agent can be designed, that is, a water quality detector for measuring the water quality of the outlet zone 3, such as a turbidity detector 33, is disposed in the outlet zone 3, the water quality detector is in signal connection with the control center 7, and the control center 7 controls the opening of the metering pump 65 according to the detection result of the water quality detector, thereby achieving the effect of controlling the amount of the flocculating agent discharged from any branch pipe.
As an added implementation mode, namely, in order to improve the sufficient mixing effect of the flocculation reagent and the inlet water of the flocculation area, the outlet end of the main pipe of the medicine outlet pipe 62 is connected with the outlet end of the inlet pipeline 11 through a Y-shaped structure to form a mixing pipe; when the mixing tube is used, the outlet end is close to the bottom surface of the flocculation area 1, and is arranged in the middle of the flocculation area 1, so that the scheme of fully mixing water inlet from the bottom of the flocculation area 1, a flocculation reagent and a water body is achieved. In some embodiments, in order to enhance the flocculation effect of the river water, a push-type stirrer 12 is installed at the bottom end of the mixing pipe.
In combination with the embodiment of the low-carbon and energy-saving river shown in fig. 2, a river including a plurality of small rivers and a plurality of parks is provided with an energy station 81, the water source energy is fully utilized by the water source heat pump technology, and then the water is directly returned to the water body. Selecting a certain river 82 near a water source heat pump to construct the in-situ flocculation and precipitation treatment system 8, connecting water in a water outlet pipe 83 of the water source heat pump into a water inlet pipeline 11 of the flocculation and in-situ flocculation and precipitation treatment system, treating the water in a river treatment area, conveying the water to each nearby river, and returning the water to the river to form a large water circulation of a plot area.
The scale of diversion of the system engineering is 5 ten thousand meters3And d, selecting a river channel with the width of 24m and the height of 3m, and arranging two water retaining dams 4 and 5 at the upper end of the river channel to form a flocculation zone 1 with the length of 3m, a precipitation zone 2 with the length of 120m and a water outlet zone 3 with the length of 30m, wherein the hydraulic retention time of the precipitation zone 2 is 150min, and the hydraulic retention time of the water outlet zone 3 is 30 min.
A buried dosing room 84 is arranged in an underground space of a river bank, a dosing unit 6 is arranged in the dosing room 84, and the dosing unit 6 is provided with a dosing tank a and a dosing tank b, wherein a coagulant is polyaluminum chloride (PAC) in the dosing tank a, the maximum dosing amount of a metering pump 65 is controlled to be 10mg/l, a coagulant aid is Polyacrylamide (PAM) in the dosing tank b, and the maximum dosing amount of the metering pump 65 is controlled to be 0.1 mg/l. Each medicine outlet pipe 62 is connected with a digital diaphragm metering pump, the digital diaphragm metering pump is connected with a control center 7, and the control center 7 is connected with a turbidity detector in the water outlet area 3; turbidity and corresponding dosing amount data can be recorded in a platform database of the control center 7 through the access, the dosing amount can be automatically matched from the database by a processor of the control center 7 according to the turbidity, and the digital diaphragm metering pump can be regulated and controlled, so that the treatment cost can be saved and the sludge treatment amount can be reduced by flexibly controlling the dosing amount.
When the in-situ flocculation and precipitation treatment system normally operates, the water passing dam 5 and the gate 42 of the water retaining dam 4 are in a vertical state, tail water of the water source heat pump and a flocculation reagent are fully mixed in the flocculation area 1, flow into the precipitation area 2 from the upper part of the water passing dam 4, flocculate fully precipitates in the precipitation area 2, then enters the water outlet area 3, and is led to a peripheral river channel through the lifting pump 31; when the river 82 floods, the gate 42 is rotated by 90 ° to be in a horizontal state, and the folding plate 44 is opened, so that the gate 42 is generally in a state of being almost flush with the river bottom. In the embodiment, the effluent turbidity of the river water source heat pump system is 38-95NTU, after flocculation precipitation purification treatment, the effluent turbidity is controlled to be less than or equal to 10NTU, dry sludge is about 5.5t/d, the effluent turbidity enters an underground space of a river bank through a sludge pump 21 and is distributed in a buried sludge treatment unit 85, the buried sludge treatment unit 85 comprises a sludge pond, a sludge concentration and dehydration all-in-one machine and a dry sludge lifting mechanism, the outlet end of a sludge discharge pipe 22 is communicated to the sludge pond, sludge in the sludge pond is dried and dehydrated through the sludge concentration and dehydration all-in-one machine and then is sent out of the buried sludge treatment unit 85 through the dry sludge lifting mechanism, and the sludge concentration all-in-one machine selects a model with the treatment capacity of not less than 300 kgDS/h.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims (10)

1. The low-carbon and energy-saving riverway in-situ flocculation precipitation treatment system is characterized by comprising a first retaining dam, a first passing dam, a second passing dam and a second retaining dam which are sequentially arranged at intervals along the riverway water flow direction, wherein the first retaining dam, the first passing dam, the second passing dam and the second retaining dam sequentially form a flocculation area, a precipitation area and a water outlet area, and the heights of the first passing dam and the second passing dam are lower than those of the first retaining dam and the second retaining dam;
the flocculation area is provided with a water inlet pipeline and a dosing unit, and the dosing unit is used for dosing a flocculating agent to the flocculation area;
the sedimentation zone is provided with a sludge discharge unit, the sludge discharge unit comprises a sludge pump and a sludge discharge pipe communicated with the sludge pump, and the outlet end of the sludge discharge pipe is positioned on the bank side of the river channel;
the water outlet area is provided with a drainage pipeline and a lift pump, the lift pump is arranged on the drainage pipeline, and the outlet end of the drainage pipeline is communicated to any peripheral river channel outside the in-situ flocculation precipitation treatment system.
2. The low-carbon energy-saving riverway in-situ flocculation-precipitation treatment system is characterized in that the first retaining dam, the first passing dam, the second passing dam and the second retaining dam are identical in structure and respectively comprise a sand blocking ridge, a gate pier, a folding part and a supporting part;
the sand blocking ridges are vertically arranged at the bottom of the river channel, and the upstream surfaces of the sand blocking ridges are arc surfaces opposite to the water flow direction; the gate piers are positioned on the opposite sides of the arc-shaped surface of the sand blocking ridge, and the end parts of the gate piers are abutted against the sand blocking ridge; the gate is arranged above the gate pier, a cylindrical rotating shaft is arranged at the bottom end of the gate, and the cylindrical rotating shaft is fixedly arranged on the upper surface of the gate pier; the supporting part is arranged on the side, far away from the sand blocking ridge, of the gate pier, the end part of the supporting part is connected to the gate, and the gate is at least in two position states of being vertical to the upper surface of the gate pier and being parallel to the upper surface of the gate pier on the cylindrical rotating shaft; the folding part is arranged between the sand blocking ridge and the gate and is positioned above the gate pier, and two ends of the folding part are respectively connected with the gate and the sand blocking ridge;
when the gate is in a position state that the gate is parallel to the upper surface of the gate pier on the cylindrical rotating shaft, the folding part is unfolded, and a closed area is defined by the unfolded surface formed by the folding part, the opposite surface of the arc-shaped surface on the sand blocking ridge, the gate, the upper surface of the gate pier and the two side surfaces of the river channel.
3. The low-carbon energy-saving riverway in-situ flocculation precipitation treatment system is characterized in that the dosing unit comprises a control center, a plurality of medicine storage tanks, a plurality of medicine inlet pipes and a plurality of medicine outlet pipes;
the number of the medicine inlet pipes corresponds to that of the medicine storage tanks, any medicine inlet pipe is connected with one medicine storage tank, and a feeding pump is arranged on any medicine inlet pipe; the medicine outlet pipe comprises a main pipe and a plurality of branch pipes communicated with the main pipe, the number of the branch pipes corresponds to that of the medicine storage tanks, and the inlet end of any branch pipe is communicated with the bottom end of the medicine storage tank; the total pipe of the medicine outlet pipe extends to the bottom of the flocculation area, a metering pump is arranged on any branch pipe of the medicine outlet pipe, and the metering pump and the feeding pump are in signal connection at a control center.
4. The low-carbon energy-saving riverway in-situ flocculation precipitation treatment system is characterized in that the water outlet area is provided with a water quality detector for measuring the water quality of the water outlet area, and the water quality detector is in signal connection with a control center, so that the control center controls the opening of a metering pump according to the detection result of the water quality detector and controls the discharge amount of any branch pipe.
5. The low-carbon energy-saving riverway in-situ flocculation precipitation treatment system is characterized in that the outlet end of the dosing pipe is connected with the outlet end of the water inlet pipe through a Y-shaped structure to form a mixing pipe; the outlet end of the mixing pipe is close to the bottom surface of the flocculation area.
6. The low-carbon energy-saving riverway in-situ flocculation precipitation treatment system is characterized in that a push type stirrer is installed at the bottom end of the mixing pipe.
7. The low-carbon energy-saving riverway in-situ flocculation-precipitation treatment system as claimed in claim 2, wherein the first retaining dam and the second retaining dam are equal in size, and the first passing dam and the second passing dam are equal in size; the height of the gate in the first retaining dam when the gate is installed perpendicular to the bottom of the river channel is defined as H1, the height of the gate in the first passing dam when the gate is installed perpendicular to the bottom of the river channel is defined as H2, H1 is H0+0.3m, H2 is H0-0.2m, and H0 is the normal water level of the river channel.
8. The system for treating in-situ flocculation precipitation in riverway according to claim 2, wherein the width of each sand bank in the first retaining dam, the first passing dam, the second passing dam and the second retaining dam is equal to the width of the retaining dam or the passing dam.
9. The system for treating in-situ flocculation precipitation in riverway according to claim 1, wherein the riverway water flow direction is defined as the length direction, and the lengths of the flocculation zone, the sedimentation zone and the water outlet zone are respectively L1, L2 and L3, so that L2 > L3 > L1.
10. The low-carbon energy-saving riverway in-situ flocculation precipitation treatment system is characterized in that a buried sludge treatment unit is laid on the riverway bank, and comprises a sludge pond, a sludge concentration and dehydration integrated machine and a dry sludge lifting mechanism; the outlet end of the sludge discharge pipe is communicated to a sludge tank, and sludge in the sludge tank is dried and dehydrated by a sludge concentration and dehydration integrated machine and then is sent out of the buried sludge treatment unit by a dry sludge lifting mechanism.
CN202122803006.0U 2021-11-16 2021-11-16 Low-carbon and energy-saving riverway in-situ flocculation precipitation treatment system Active CN216513195U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117446938A (en) * 2023-12-21 2024-01-26 北京高能时代环境技术股份有限公司 System and method suitable for in-situ purification of river water body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117446938A (en) * 2023-12-21 2024-01-26 北京高能时代环境技术股份有限公司 System and method suitable for in-situ purification of river water body
CN117446938B (en) * 2023-12-21 2024-03-22 北京高能时代环境技术股份有限公司 System and method suitable for in-situ purification of river water body

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