59results about How to "Reduce the amount of flushing water" patented technology

The invention relates to a revolving drum type micro-filter. The revolving drum type micro-filter comprises a driving device (1), a box body (2), a housing (3), a revolving drum (4), a flushing device (5), a micro filtering net (6) and a dirt discharging groove (9). According to the method for processing sewage, sewage can flow into the hollow revolving drum, due to the action of gravity, the liquid flows towards the outer side of the filtering net from the inner side of the filtering net, and suspended matter in the water is intercepted on the inner side of the stainless steel filtering net; the revolving drum revolves slowly, a flushing water pump of the flushing device extracts the filtered water to conduct back flushing on the filtering net, the flushing water is used for flushing the filtering net from the outer side of the filtering net to the inner side of the filtering net through a nozzle of the flushing device located on the top of the revolving drum, and particulate matter which is flushed away is collected through the dirt discharging groove and is discharged out of the micro-filter through a sewage pipe. The micro-filter is simple and small in structure, small in occupied area, good in treatment effect, convenient to maintain, low in unit treatment cost and more environmentally friendly compared with other filtering devices.

The invention discloses a sewage aerobic land treatment system. The system comprises a groove body formed by digging under the ground, wherein impermeable membranes are laid at the periphery and at the bottom of the groove body; and a sand layer, a water distribution layer, a packing and water collecting layer and a soil layer are formed in turn from bottom to top. The sewage aerobic land treatment system is characterized by also comprising a blast aeration system consisting of a blast blower, an air diffusion device and a connecting pipeline, wherein the air diffusion device is positioned below the water surface of the land treatment system and connected with the blast blower through a pipeline; pretreated sewage enters the land treatment system; and air is pressurized by the blast blower and diffused into sewage of the system in the form of small air bubbles through the air diffusion device. Therefore, the aims of charging oxygen into the sewage and stirring are fulfilled, good reoxygenation effect, high mass transfer efficiency, quick bio-membrane updating and high treatment efficiency are achieved, and the problem of blockage of the land treatment system in the operating process is solved effectively.

A desulfurizing tower spraying, condensing, amplifying, dedusting and demisting integrated device comprises a desulfurizing tower, a demister and a spray cooling system. The device is technically characterized in that the demister is composed of a tubular demister, a first-stage weir-type demister, a second-stage thin-weir-type demister and a third-stage fine-weir-type demister which are sequentially arranged from bottom to top, the spray cooling system comprises a cooling water spray layer, a liquid collection tube grid and a cooling water tank, the cooling water spray layer is arranged between the second-stage fine-weir-type demister and the first-stage weir-type demister, the liquid collection tube grid is positioned between the cooling water spray layer and the first-stage weir-type demister, the cooling water spray layer is connected with the cooling water tank through a water supply pipe, a water supply pump is arranged on the water supply pipe, the top of the liquid collection tube grid is open, and the liquid collection tube grid is connected with the cooling water tank. By the device, synergistic dedusting capacity of the desulfurizing tower can be improved effectively, system flushing water amount can be reduced, gypsum carrying amount of smoke at an outlet of the desulfurizing tower can be lowered substantially, so that gypsum rain of a chimney is eliminated thoroughly.

The invention relates to a dust collection polar plate of a wet-type electric dust collector. The surface of the dust collection polar plate is in a convex-concave shape, a slot is formed on one concave part, the slots are arranged in rows on the surface of the polar plate and uniformly distributed, the centers of the two rows of slots are arranged in a staggered manner, the slots are distributed in a triangular shape, and are smoothly connected with each other, and the three-dimensional shape of each slot is a spherical crown body or a pyramid body. The concave-convex dust collection polar plate has a function of transversely buffering and uniformly distributing the water flow, the flow direction of the water flow can be controlled in a guiding manner, a uniform water membrane can be formed on the entire surface of the polar plate, the rinsing water amount of the polar plate is reduced, and the water consumption can be reduced; the length of the polar plate can be increased from 6m to 8m to 8m to 13m, and the occupied area of the equipment can be reduced; the formation of channeling on the polar plate can be avoided, the running stability of the equipment can be improved, and the purification efficiency can be guaranteed.

The invention relates to a method for simultaneously removing insoluble organic matter, total cyanogen and total nitrogen in wastewater of an industrial park. The method comprises the following steps: wastewater enters a high-efficiency coagulated decyanation reactor to remove total cyanogen in the wastewater removed from the coagulated decyanation reaction; effluent from the coagulating reaction enters an aeration biofilter, ammonia and nitrogen in the wastewater is oxidized into nitrate nitrogen or nitrite nitrogen, and partial organic matters are oxidized and removed; effluent from the aeration biofilter flows into a denitrification filter tank, and nitrate nitrogen and nitrite nitrogen in the wastewater are denitrified into nitrogen and removed; effluent from the denitrification filter tank is filtered in a V-shaped filter tank and then enters an ozone catalytic oxidation tank, and insoluble organic matters are oxidized into small-molecular organic matters or mineralized in the presence of a catalyst. The method can be used for oxidizing and degrading organic matters while removing total cyanogen and total nitrogen in the wastewater to ensure that treated effluent can be emitted in standard, thus having an excellent market prospect.

The invention discloses a small rapid filter equipped with an air and water backwash system. The small rapid filter comprises a filter body and is characterized in that the filter body is provided with a filter material layer, and the bottom of the filter material layer is provided with air and water distribution pipes which are also used as water collecting devices and water and air distribution devices for air and water backwashing; and the top and side wall of each water and air distribution pipe are provided with backwashing air holes, and each pipe bottom is provided with backwashing water holes. From the bottom to the top, the bottom of the filter is respectively provided with a lower supporting layer, water and air distribution pipes, an upper supporting layer and a filter material layer. One side of the filter is communicated with an intake canal, and the other side is communicated with the a water and air distribution chamber through the water and air distribution pipes; one end of the intake canal is provided with a water inlet pipe, and the other end is provided with a backwashing drainage pipe; and one end of the water and air distribution chamber is provided with a backwashing air pipe and a backwashing water pipe, and the other end is provided with a water outlet pipe. In operation, the fast filter reaches a filtration rate of 8 m/h, filtration period of 24-48 h, and water treatment amount of 700 m<3>/d. According to water supply demand, multi-group fast filters can be arranged for parallel operation, and the capacity expanding is convenient with basically no building work amount.

The invention discloses a vacuum water-saving public toilet, comprising a vacuum toilet, a urinal, a clean water tank, a gray water tank, an intermediate tank and a vacuum sewage tank, wherein the gray water tank is configured to receive water drained from a wash basin and treat the drained water for flushing the vacuum toilet and the urinal; the clean water tank is configured to provide hand washing water, and to provide clean water for flushing the vacuum toilet and the urinal when the water in the gray water tank is insufficient; the intermediate tank is configured to receive and temporarily store sewage from the urinal, and discharge the sewage to the vacuum sewage tank when a certain amount of sewage is accumulated; the vacuum sewage tank is configured to have a certain degree of vacuum and suck sewage in the vacuum toilet and the intermediate tank in vacuum. The vacuum water-saving public toilet can reduce the water consumption of public toilets, improve the utilization rate of waste water, avoid the overflow of odor in the sewage tank, and effectively improve the toilet environment.

The invention discloses a pulse washing method of a reverse osmosis membrane of a water purifier, and relates to the technical field of water purifiers, domestic drinking machines and commercial drinking machines. The pulse washing method comprises the following steps: when an electric control plate of the water purifier receives a washing reverse osmosis membrane instruction from the water purifier, controlling a washing electromagnetic valve to wash the reverse osmosis membrane in an interval working mode through the electric control plate, namely washing for a certain time, stopping washing, washing again, stopping washing, and repeating the operation until the accumulated washing time reaches a set value. As the washing operation is implemented in an interval manner in the method, the water pressure to the reverse osmosis membrane is increased within each small section of the washing time, the washing water amount and the washing time are reduced on premise that an original washing effect is maintained, the resource is saved, the use cost is lowered, and the working efficiency is improved.

The invention discloses a high-efficiency coupling dust remover applicable to a desulfurization dust-removing absorption tower and a dust removing method thereof. The high-efficiency coupling dust remover comprises an impact dust-removing area, an electric-field dust-removing area and a washing and spraying layer, wherein the impact dust-removing area comprises two or more rows of round pipe layers which are arranged in parallel from top to bottom, and each two adjacent upper and lower rows of round pipe layers are arranged in a staggering manner; the electric-field dust-removing area comprises an anode plate for collecting dust and a cathode line for discharging; the washing and spraying layer is arranged above the electric-field dust-removing area; flue gas flows through the impact dust-removing area, the electric-field dust-removing area and the washing and spraying layer in sequence. The dust removing method comprises the following steps: carrying out impact treatment on flue gas to be treated entering from a flue-gas inlet; carrying out electric-field force adsorption treatment on the flue gas after impact treatment; and carrying out intermittent or continuous spraying cleaning on the anode plate and the cathode line. The high-efficiency coupling dust remover disclosed by the invention has the advantages that high-efficiency and stable operation of the dust remover can be effectively guaranteed, the efficiency of removing fine particles in the flue gas can be improved and thus the requirement on ultraclean emission of particles is met.

The invention discloses a toilet flushing system with an injection pump. The toilet flushing system comprises a flushing water system and a water saving system, wherein the flushing water system comprises a tap water control solenoid valve, the injection pump, a liquid level measurement float switch and a flushing water control solenoid valve, and the water saving system comprises the injection pump, an air control solenoid valve, a high-liquid-level measurement float switch, a low-liquid-level measurement float switch, a water sucking control solenoid valve and a siphon water release control solenoid valve. According to the toilet flushing system, the injection pump is added, so that part of pressure energy of the tap water is recycled, and the part of energy is used for recycling part of water for urine flushing of the toilet; during the faces flushing, the recycled water is drained into a drain pipeline of the toilet earlier than the flushing water of the toilet, siphon force is generated for sucking dirt such as feces, and then the water with the amount being equal to that of the water used for flushing urine is released for flushing the toilet to be clean. Compared with the existing water-saving toilet, the toilet flushing system provided by the invention has the advantage that the amount of the water for flushing the feces is reduced by one half.

The invention relates to a three-waste furnace heating surface pressure-stabilizing and energy-saving backwashing method which comprises the following steps: a, feeding washing water to a water tank of a deaerator to a high water level, controlling the water temperature to be 90-100 DEG C, and enabling the washing water to be ammoniated desalted water with the pH value of 8.8-9.3; b, entering the three-waste furnace from a backwash valve of the superheater, controlling the flow rate, closing a water feeding pump after a steam pocket is full of water, and standing bubbles for 1-1.5 hours; c, opening a fixed discharging valve, starting a water feeding pump to feed water for flushing, discharging water after flushing to a circulating water pool for recycling, and supplementing water to a water tank of the deaerator for heating; d, repeating the steps b and c until the conductivity and the sodium content of the water discharged by the fixed discharge valve are the same as those of the flushing water; and stopping the water feeding pump and the pressure pump, and closing the backwashing valve and the fixed discharge valve to finish backwashing. All heating surfaces of the three-waste furnace are flushed at one time and are not corroded, so that the heat exchange efficiency of the heating surfaces is improved; the start-stop frequency of the pump is reduced, stable-pressure operation is achieved, the steam consumption and the flushing water amount are reduced, and the flushing efficiency is improved.