39results about How to "Solve the fouling problem" patented technology

The invention provides a method for treating desulfurization wastewater in a power plant. The method comprises the following steps: pretreating the desulfurization wastewater to obtain primary clarified liquor; enabling the primary clarified liquor to enter a filtering device to be filtered; providing a four-compartment electrodialyzer to perform ion recombination on ions in each water flow channel unit through an electric drive effect; further enabling produced water of each water flow channel unit to pass through a nanofiltration system to perform salt separation treatment, concentrating by utilizing an electrodialysis system, and desalinating the wastewater by utilizing a reverse osmosis system. According to the method disclosed by the invention, salts in the wastewater which are easy to scale are subjected to ion recombination so as to form soluble salts which are difficult to scale, so that the problem of scale formation in subsequent electrodialysis equipment or a high-pressure reverse osmosis system is solved. Moreover, according to the nanofiltration system for concentration, the electrodialysis system or the high-pressure reverse osmosis system, the content of total soluble solids in the wastewater is 8-16%, and the recovery rate of 80-90% of the wastewater is realized.

The invention discloses a system and a method for processing rubbish percolate. The system comprises a collecting pool, a middle pool, a vibrating film nano-filtration device and an evaporation device, wherein the vibrating film nano-filtration device comprises a shell, a diaphragm set and a motor; the diaphragm set downward extends, thereby forming a central driving rod; the motor and a belt areused together for driving an eccentric block on the central driving rod to rotate so as to generate a centrifugal force which can trigger vibration; the diaphragm set is driven to vibrate by energy generated from vibration, with the help of the central driving rod; and a shearing force which is generated by high-frequency vibration is spread in a sine form by the surface of a diaphragm in the diaphragm set, thereby efficiently solving a chocking problem of the diaphragm in the diaphragm set, achieving higher capability of resisting diaphragm pollution, realizing simple and efficient treatmentfor the rubbish percolate and achieving a better treating effect. A recycling system which is composed of the collecting pool, the middle pool and the evaporation device is used for continuously and efficiently separating clean liquid from concentrated liquid. The clean liquid meets the standard and is discharged. The concentrated liquid is evaporated and treated by the evaporation device, thereby achieving the purposes of reducing emission and reducing wastes.

The invention relates to a horizontal flow precipitation separation device. The horizontal flow precipitation separation device is characterized by comprising multiple corrugated plates arranged in a precipitation pond, wherein each corrugated plate is vertically arranged relative to a horizontal plane, the adjacent corrugated plates are symmetrically arranged and are spaced, and the smallest interval of the adjacent corrugated plates serves as a sludge discharging channel. Compared with the prior art, the horizontal flow precipitation separation device preserves the advantages that a flow direction and a precipitate sludge discharging direction are mutually vertical without interfering with each other, the disturbance between the horizontal flow and a precipitate is avoided, the submerged sludge is prevented from suspending again, meanwhile, a sludge discharging manner is optimized, the vertical sludge discharging channel is adopted, when stream horizontally flows through a stream channel, suspended solids are collided with a frame of the stream channel to rapidly precipitate, and slide downwards along the frame to enter the sludge discharging channel so as to directly precipitate to the bottom of the precipitation pond, and a wobble plate does not need to bear load, so that a problem of load-bearing of the wobble plate caused by large precipitate quantity is solved.

The invention discloses an over-frequency vibrating separator and a separating system. The over-frequency vibrating separator comprises a casing, a membrane set and a motor. A central driving rod is extended from the membrane set and is equipped with an eccentric block and first flange at a lower end thereof; an output terminal of the motor is provided with a second flange which is flexibly connected with the first flange through a belt. Thereby, the motor drives the eccentric block on the central driving rod to conduct eccentric exercise in order to initiate swing, and energy generated from swing promotes vibration of the membrane set through the central driving rod; when a rotating speed of the motor reaches a frequency required by a resonance environment, the vibrating amplitude of themembrane set reaches the maximum, and the shearing force generated by the membrane set transmits in a sine mode through diaphragm surfaces in the membrane set, so as to effectively solve a problem ofdiaphragm stagnation in the membrane set. The over-frequency vibrating separator, a charge pump, a charging cylinder and a filtering hydraulic cylinder form a separating system in order to separate afiltrate continuously and effectively and realize a higher sewage recovery utilization rate; meanwhile, a lot of energy can be saved to bring good economic and social benefits for an enterprise.

The invention relates to a novel sewage treatment device. The novel sewage treatment device comprises a reaction tank, wherein the reaction tank is separated into an aerobic zone, an anaerobic oxygen-poor zone and an anaerobic zone; the side wall is provided with a water inlet hole and a mud scraper is arranged at the bottom; a mud bucket is arranged below the reaction tank; the mud bucket is internally provided with a pushing device; a separation plate is provided with an aeration device and is accumulated with an AO reactor; a water passing hole and a water passing weir are arranged on the upper part of the reaction tank; a sludge reflowing hole and a liquid supernatant reflowing hole which is connected with a liquid supernatant pumping-out hole of a sedimentation basin are formed in the side wall of the reaction tank; the sedimentation basin and the reaction tank share one side wall; the sludge reflowing hole on the lower part of the sedimentation basin is communicated with the bottom of the sedimentation basin; the sedimentation basin is internally provided with a horizontal flow sediment separation device; a clean water outlet hole is formed in the side wall of the sludge sedimentation basin; the clean water outlet hole is formed above the horizontal flow sediment separation device; a water outlet weir is arranged on the outer side wall of the sedimentation basin. According to the novel sewage treatment device, the plane occupied area is greatly reduced; organic carbon in raw water can be sufficiently utilized to be used as a carbon source needed by a denitrification process of the oxygen-poor zone can be sufficiently utilized so that the adding amount of the additionally-arranged carbon source is reduced and the whole performance of a sewage treatment system is strengthened.

The invention discloses a system and a method for treating organic wastewater of a circuit board. The system comprises circuit board processing equipment, a collection pool, a vibration film ultrafiltration device, a reverse osmosis device and an incinerator, wherein the vibration film ultrafiltration device comprises an enclosure, a membrane module and a motor, wherein the membrane module downwards extends to form a central rotating rod, therefore, swing can occur by using a centrifugal force generated by matching and utilizing the motor and a belt to drive an eccentric block on a central driving rod to rotate; energy generated by swing promotes the membrane module to vibrate through the central driving rod; and a shear force generated by high-frequency vibration is spread through a membrane surface in the membrane module in a sine force, thereby the silt of the membrane in the membrane module is effectively overcome and the simple and effective treatment of the organic wastewater ofthe circuit board is realized. The treatment system can be used for continuously and effectively separating clear solution from concentrated solution; the clear solution is input into the reverse osmosis device for RO (Reverse Osmosis) advanced treatment and then is recycled to the circuit board processing equipment, so that the cost is saved; and the concentrated solution is incinerated and treated by using the incinerator, and thus the goals of reducing emission and waste are achieved.

The invention discloses a water purifying machine with the pure-water-membrane-soaking function during stopping resting. The water purifying machine comprises an original water end, a water feeding electric valve, a filter element mechanism, a boosting pump and a RO membrane module, and also comprises a check valve, a pure-water storage tank, a high-water-level floating ball switch, a low-water-level floating ball switch, a water feeding pump and a micro-wastewater-ratio-combination electromagnetic valve, wherein the original water end, the water feeding electric valve, the filter element mechanism, the boosting pump and the RO membrane module are sequentially connected through a pipe. A pure water outlet in the RO membrane module is connected with a water returning pipe and a water discharging pipe; the water returning pipe is provided with the check valve, and the water discharging pipe is provided with the pure-water storage tank, the water feeding pump and a pure water faucet; a thick water outlet in the RO membrane module is connected with the micro-wastewater-ratio-combination electromagnetic valve, and the micro-wastewater-ratio-combination electromagnetic valve is connected with a sewer for discharging; the high-water-level floating ball switch and the low-water-level floating ball switch are arranged in the pure-water storage tank. By means of the water purifying machine with the pure-water-membrane-soaking function during stopping resting, in the using process of a traditional RO water purifying machine, the problem that as the traditional RO water purifying machine is located in thick-water membrane soaking during resting stopping, the initial water-making TDS value of the RO water purifying machine is higher than the standard value is solved, and the membrane-surface scaling problem caused when a RO membrane sheet is soaked with thick water for a long time is solved.

The invention discloses a novel water purifying machine with the pure-water-membrane-soaking function during stopping resting. The novel water purifying machine comprises a water feeding electric valve, a filter element mechanism, a boosting pump, a RO membrane module, a check valve, an one-in-two-out electric valve, a pure-water storage tank, a high-voltage switch, a pure water faucet and a micro-wastewater-ratio-combination electromagnetic valve which are sequentially connected through a pipe. The water feeding electric valve is connected with a water inlet of the boosting pump through the filter element mechanism, a water outlet of the boosting pump is connected with the RO membrane module, and a pure water outlet of the RO membrane module is connected with a water returning pipe and a water discharging pipe; the water returning pipe is provided with the check valve and connected with the water inlet of the boosting pump; the water discharging pipe is provided with the one-in-two-out electric valve, the pure-water storage tank, the high-voltage switch and the pure water faucet; a thick water outlet of the RO membrane module is connected with a sewer through the micro-wastewater-ratio-combination electromagnetic valve. By means of the novel water purifying machine with the pure-water-membrane-soaking function during stopping resting, in the using process of a traditional RO water purifying machine, the problem that as the traditional RO water purifying machine is located in thick-water membrane soaking during resting stopping, the initial water-making TDS value of the RO water purifying machine is higher than the standard value is solved, and the membrane-surface scaling problem caused when a RO membrane sheet is soaked with thick water for a long time is solved.

The invention relates to an automatic dredging system and method for relieving waterlogging and solving problem of silt up of a drainage pipe network. 1, the invention belongs to the field of municipal drainage, and relates to a rainwater pipe network automatic dredging system including a rainwater well, a sludge siltation well, and a sludge dewatering well (Figure 1-6). 2, the invention can be directly arranged on an existing rainwater well and an existing old rainwater pipe network, upgrading and reconstruction can be performed on a rainwater well of a pipe having serious sludge siltation, and the problem that the sludge siltation of the drainage pipes is difficult to clean can be solved. 3, the automatic dredging system and method are suitable for old rainwater pipe networks and newly constructed rainwater pipe networks, and can solve the problem that sand in rainwater flows to the rainwater pipe networks to cause sand sedimentation, the sand sedimentation causes poor drainage or silt up of the rainwater pipe networks, and results in city waterlogging. 4, sludge in a dewatering barrel in the sludge dewatering well can be sucked in a tank via a tank dirt suction vehicle to be transported, or can be hoisted in a rubbish truck to be conveyed.

The invention discloses a method for recycling biogas slurry and a vinasse clear liquid and producing ethanol, and belongs to the technical field of wastewater treatment and ethanol fermentation industries. Calcium oxide is added into the biogas slurry obtained through anaerobic digestion to soften the biogas slurry, the softened biogas slurry is deaminized and then is mixed with the vinasse clearliquid, membrane separation is performed, and obtained filtrate returns to a crushing and mixing section as mixing water. After the biogas slurry is softened, the concentration of calcium ions is reduced to 20 mg/L or below, so the scaling problem of calcium carbonate in subsequent deamination and membrane separation operation is solved, and the device investment and operation cost of membrane separation are reduced; single-stage or multi-stage high-vacuum negative-pressure deamination is adopted, so that the risk of atmospheric secondary pollution is avoided, and the deamination operation cost is greatly reduced; and the biogas slurry and the vinasse clear liquid are mixed and subjected to membrane filtration, so bacteria in the biogas slurry and the vinasse clear liquid are eliminated,smooth ethanol fermentation is guaranteed, the operation pressure is lower than that of a tubular ultrafiltration membrane, and the operation cost is low.

The invention discloses a method for treating easily-scaled salty wastewater. The method comprises the following steps: A, preliminarily clarifying and filtering the wastewater to remove suspended particles in the wastewater; B, carrying out ion grouping on the wastewater by a first electrodialyzer; and C, respectively independently carrying out secondary concentrating on first compartment produced water and third compartment produced water: conveying the first compartment produced water into a second concentrating device to obtain corresponding first freshwater and first concentrated water, conveying the first freshwater into a first compartment, adding pure water into the first compartment, conveying the third compartment produced water into a third concentrating device to obtain third freshwater and third concentrated water, conveying the third freshwater into the third compartment, and adding pure water, commonly used as third compartment feed water, into the third compartment. Themethod has the advantages of realization of easily scaled ions, prevention of scaling in an apparatus, low running cost, small volume of concentrated water, and large amount of reused freshwater.

The invention relates to a treatment method for sea water decalcification through equilibrium adsorption of a centrifuge, comprising the specific steps of: (1) mixing an adsorption material with water and preparing slurry; (2) standing the slurry obtained in the step (1) for 4-6 minutes, precipitating the material and pouring out the supernatant water, thereby obtaining the subsurface material which is a water mixture; (3) feeding the water mixture into the centrifuge at the feeding speed of 0.6-1 m3/h under the control of a pump, and centrifuging to obtain the filtrate, namely the decalcified sea water. The method for sea water decalcification provided by the invention is simple, the ion exchange capacity in the method is greater than 2 mol Ca<2+>/kg, adsorptione equilibrium is established in 0.3 seconds, and therefore, the sea water decalcification time is greatly shortened and the production cost of the enterprise is saved. The adsorption material used in the method is an amorphous-state inorganic ion exchange material; and the adsorption material can be used under the condition of 0-250 DEG C, and as a result, the method is convenient to operate and the production efficiency is improved.

The invention discloses a multi-layer column leaching device for soil pollutant leaching. The multi-layer column leaching device for soil pollutant leaching comprises a liquid distributing unit, leaching units and a collecting unit, wherein the liquid distributing unit is used for distributing leaching liquid; each leaching unit is used for extracting pollutants; the collecting unit is used for collecting leaching liquid; the liquid distributing unit, the leaching unit and the collecting unit are connected sequentially and detachably; the leaching liquid sequentially flows through the liquid distributing unit, the leaching unit and the collecting unit. The plurality of leaching units are connected in series and assembled, so that the utilization rate of the leaching liquid is increased, the pollutant concentration of each unit of leaching liquid is greatly increased and the subsequent processes of enriching and separating the pollutants are reduced.

The invention belongs to the technical field of evaporator and discloses a sodium sulfate solution circulating fluidized bed evaporation device and an operation method thereof. A heating pipe is vertical and the lower end of the pipe is inlet and the upper end of the pipe is outlet; the outlet of the heating pipe is connected with the inlet of an evaporation chamber through a first connection pipe, the upper outlet of the evaporation chamber is connected with a condenser, the lower outlet of the evaporation chamber is connected with the inlet of a circulation pipe, the outlet of the circulation pipe is connected with the inlet of a circulation pump, and the outlet of the circulation pump is connected with the inlet of the heating pipe through a second connection pipe. An electromagnetic flowmeter is mounted on the circulation pipe and connected with a high-level groove and an on-line particle feeding device, and an on-line particle collecting device is connected with the first connection pipe; the on-line particle feeding device and the on-line particle collecting device are respectively used for adding and collecting silicon carbide particles. The invention combines the fluidizedbed heat exchange scale prevention and energy saving technology with the evaporation process of the sodium sulfate solution, the operation is simple, and the heat transfer and scale prevention performance in the evaporation process of the sodium sulfate solution are effectively improved.

The invention discloses a heat exchange system and method for continuous wastewater treatment in a biosafety laboratory, and belongs to the technical field of wastewater treatment. The heat exchange system comprises a first double-layer sleeve heat exchanger located at a waste water inlet and a first valve located at a soft water injection opening, a double-layer sleeve on the first double-layer sleeve heat exchanger is divided into an inner pipeline and an outer pipeline, and the inner pipeline of the first double-layer sleeve heat exchanger is fixedly connected with an inlet pipeline of a heating device through a stainless steel pipeline. An outlet pipeline of the heating device is fixedly connected with a heat preservation coil pipe through a stainless steel pipeline. According to the heat exchange system, the electric heating device is arranged to preheat soft water, waste water in the initial starting stage of the continuous waste water treatment system can be preheated and then secondarily heated to the inactivation temperature through the heating device, stepped heating is achieved, and the problems that the temperature in the initial heating stage of the waste water is difficult to rise and the power of the heating device is too large are solved; and the problem of scaling caused by overlarge temperature difference of the pipeline is avoided.