96results about How to "Save on water bills" patented technology

The invention relates to a full-automatic washing machine with a big washing bucket and a small washing bucket. The washing machine comprises a water containing bucket, a big washing and dewatering bucket, a big bucket impeller, a dewatering bucket seat, a middle fountain plate and a gimbal, and further comprises a small washing and dewatering bucket arranged inside the big washing and dewatering bucket and connected with the big washing and dewatering bucket, a cover of the small washing and dewatering bucket, a small bucket impeller arranged inside the small washing and dewatering bucket and at the bottom of the small washing and dewatering bucket, and a transmission shaft with one end being arranged in the small bucket impeller and the other end being arranged in the big bucket impeller. The big bucket is insulated from the small bucket; the big impeller transmit the washing power to the small impeller through the transmission shaft; linkage lugs are arranged on the small washing and dewatering bucket and the cover thereof, and are matched with the big washing and dewatering bucket; and the linkage lugs enable the dewatering power of the big bucket to transmit to the small bucket. Through small washing bucket accessories arranged in the washing machine, the full- automatic washing machine can achieve the purposes that clothes to be washed can be separated and the accessories can be conveniently dismounted and installed. The washing machine is convenient to use, and saves power and water owing to the more reasonable washing manner.

The invention discloses a reclaimed craft to dispose electroplating waste water, which comprises the following steps: adopting oxidation-reduction and chemical precipitation disposing method and film technology (fold filtration, hyperfiltration, Na filtration and reverse osmosis desalination) deep purifying method; avoiding accumulation of salt effectively; reverse osmosis sloughing monovalent salt at last grade; trapping bivalent salt in innocent treatment system; proceeding depositing treatment continually; removing accumulating BOD and COD in water body through biochemical treatment effectively; realizing zero discharge of waste water.

The invention discloses fermenting bed padding and a preparation method and applications thereof. The fermenting bed padding is prepared by materials with the following parts by weight: (1) 35-40 parts of wood chips or wheat bran; (2) 55-60 parts of any one or the mixture of more than one of seed shells, straw, spent mushroom compost or leaves, wherein the mixture is composed by any weight proportion; and (3) 3-6 parts of rice bran or plant cakes and 0.1-0.2 part of anaerobic fermenting agent. The fermenting bed padding mainly has the following advantages of: (1) long using time; (2) no emission, no odour and no pollution; (3) saving feed, reducing cost and improving benefits; and (4) effectively reducing incidence rate of pigs, reducing medication and improving pork quality.

The invention discloses a printing and dyeing wastewater processing system. The printing and dyeing wastewater processing system comprises a comprehensive wastewater preprocessing system, a depth reuse processing system and a sludge processing system, wherein the sludge processing system comprises a sludge pool; the comprehensive wastewater preprocessing system comprises an adjustment pool, a coagulative precipitation pool, a water discharging pool, a biological hydrolysis-acidification pool, an aerobic contact oxidation pool, a radial flow type secondary sedimentation pool and an intermediate water pool which are sequentially connected; the depth reuse processing system comprises an automatic backwashing sand filtration system, a pressure type ultrafilter membrane system, an RO membrane system and an RO reuse water pool which are sequentially connected; the sludge outlet of the radial flow type secondary sedimentation pool is communicated with the sludge pool; and the water outlet of the intermediate water pool is communicated with the automatic backwashing sand filtration system. According to the invention, the quality of the depth reuse water reaches outlet water quality standards; and the deepwater reuse can saves the water resource, and COD discharge is reduced year by year, so the content of discharged ammonia nitrogen can reach standards.

The invention relates to a pipeline cleaning agent which comprises the following components by weight: 15-28 parts of organic acid, 20-35 parts of an asurface active agent, 18-30 parts of a penetrating agent and 0.5-3 parts of an acorrosion inhibitor, wherein the surface active agent comprises one or more ofpolyether, butyl cellosolve, coconut oil fatty acid diethanol amide and fatty alcohol-polyoxyethylene ether sulfate sodium; the penetrating agent comprises one or more of alcohol, sodium dodecyl sulfate, sodium dioctyl sulfosuccinate,dodecyl dimethyl betaine, sodium oleoyl methylamine ethanesulfonate and calcium chloride; the corrosion inhibitor comprises one or more of imidazolinequaternary ammonium salts or imidazoline amides. The pipeline cleaning agent can effectively remove grease and dirt in a pipeline to keep the pipeline unblocked, is safe and non-toxic, cannot corrode equipment, is harmless tohuman skin and conforms to emission standards.

This invention relates to a reclaiming and processing method of charred waste water, which is used in coking industry. It utilizes method of combining physical, chemical processing and reversing osmosis membrane processing to process charring waste water. Its basic processing flow-sheet is: 1. Aerator aerates. 2. Adjust PH to 9-11, add denitrifying agent number one MgCl2.6H2O and number two Na2HPO4, mix,, add positive ion starch-dicyandiamide-formaldehyde-polymerized chloride ferric flocculating agent. 3. Filter with multi-medium filtrator. 4. Remove ammonia nitrogen with deaminizing nitrogen filtrator. 5. Reduction reaction process. 6. Carry out membrane processing by nanometer material compound membrane. Charring waste water processed by this invention has following characteristics: synthesize process cost is low. Operation is easy. Running is stable. It benefits for industrialization.

The invention relates to an electroplating reclaimed water recycling and treating system, comprising a control device, a preposed adjusting system, an ultrafiltering treating system and a reverse osmosis treating system, wherein the preposed adjusting system, the ultrafiltering treating system and the reverse osmosis treating system are mutually communicated, the preposed adjusting system comprises an ORP (Oxidation-Reduction Potential) adjusting system and a PH adjusting device; the ORP adjusting system comprises an ORP adjusting tank, a reducing agent metering pump, a reducing agent tank and a stirrer; the ulatrafiltering system comprises a water pump, a quartz sand filter, a precise filter and an ultrafiltering membrane assembly; and the reverse osmosis system comprises a water pump, an active carbon filter, a scale inhibitor adding device, a safety filter, a first section of high-pressure pump, a second section of high-pressure pump, a reverse osmosis membrane assembly and a water purified tank. By adopting a device combining membrane separation and the filter to treat the electroplating reclaimed water, the invention has the advantages of favorable treatment effect, low operation cost, convenient operation and capability of long-term continuous operation; and in addition, the invention meets the requirements of environmental protection and cleaning electroplating, not only reduces the pollution and saves the production cost, but also can fully utilize water resources and protect the environment.

The invention relates to a rice semi-dry type seedling cultivation technology which is innovatively formed on the base of a rice dry seedling cultivation technology and is simple and convenient to perform, scientific and complete in assembled set. The rice semi-dry type seedling cultivation technology combines advantages of dry seedling cultivation and two segments of seedling cultivation and planting by insertion is convenient. The rice semi-dry type seedling cultivation technology has the advantages that work, expenditure and fertilizer are saved, seedling cultivation is safe, seedling quality is high, productivity is boosted and seedlings are high-quality. The seedlings are dried in the sun for one to two days before being sowed. Selected seedlings are soaked in warm water, torn to accelerate germination until exposed by 80% and then sowed. Holes of a seedling tray and the age of the seedlings are confirmed based on planting crops for rotation, seedlings which grow for 30 days to 35 days are placed in a seedling tray with 561 holes, seedlings which grow for 35 days to 45 days are placed in a seedling tray with 434 holes and seedlings which grow for more than 45 days are placed in a seedling tray with 343 holes. 90kg of nutrition soil for cultivating the seedlings is allocated to each mu. Two fifths of holes of a seedling tray are filled with the nutrition soil, two grains of rice are sowed, soil is used for covering all the holes and pressed and then the seedling tray is sent to a seedling field to be arranged. Semi-dry type irrigation is performed, fertilizing is reasonable and managed, and strong seedlings are cultivated, wherein the strong seedlings are stout and neat and have short, thick and white roots and at least three tillers.

The invention discloses a static electricity high-efficient collecting device applicable to water mist discharged by a wet cooling tower of a thermal power plant. The static electricity high-efficient collecting device comprises a high-voltage electricity supply device, a corona electrode (a cathode), a regular hexagonal prism-shaped water mist collection electrode (an anode), a superterranean device and a grounding device. Water molecules are polar molecules, and the gravity centers of positive charges and negative charges are not coincident; and circular cooling water in the cooling tower contains impurities, and is an electric conductor. A great many free charges and anions are generated because of corona discharge, so that the water particles are charged. Under the effect of an electric field, the free charges move toward the regular hexagonal prism-shaped water mist collection electrode (the anode) under the effect of an electric field force; when the free charges pass through suspended water particles in the water mist, the free charges are attached onto the water particles to form anions, and the anions gather on the anode under the effect of the electric field force; the electrons are released, and the suspended water particles deposit to be liquid-state; meanwhile, the original small water particles can gather to form larger particles due to the mutual effect among the charged particles; and the particles flow down along an anode plate under the effect of gravity, so that high-efficient recovery of moisture is realized. The static electricity high-efficient collecting device is simple in structure, low in cost and long in service life and is corrosion-resistant; the water mist discharged by the cooling tower can be recycled; and the static electricity high-efficient collecting device has a wide engineering application prospect.

The invention belongs to the technical field of crop cultivation and relates to a paddy rice direct seeding light cultivation method. The paddy rice direct seeding light cultivation method comprises the following steps: (1), variety choice: medium maturity japonica type paddy rice variety is suitable for huanghuai south area, (2), optimum period and earlier planting: ploughing up and sowing in time after summer crops like wheat, rape and the like stubble in huanghuai south area, sowing time is in first ten-day period of a month and middle-ten day period of a month in June, the latest sowing time can not exceed 25, June, (3), suitable sowing quantity: in 5-10, June, certified seeds of 9-10 jins per acre are used, and in 10-15, June, certified seeds of 11-12 jins per acre are used, in 15-20, June certified seeds of 14-15 jins per acre are used, (14), seeding method: drought direct seeding and water direct seeding are utilized. (5), chemical weed control, and (6), management in middle and later periods: water slurry management, fertilizer management and pest control. The paddy rice direct seeding light cultivation method solves the problems that rural labors transfer and planting of paddy rice is difficult and particularly copes the problems of outbreaks of worm spread diseases - stripe leaf blight disease year by year to bring cost to paddy rice production. The paddy rice direct seeding light cultivation method has the advantages of capable of saving labors and cost, high in production, and simple and convenient to operate and the like.

The invention relates to recycling treatment technology of dyeing sewage, which comprises the steps of ozone contact oxidation treatment, GT active biofilm treatment and reverse osmosis treatment. Firstly, the ozone contact oxidation treatment is carried out to oxidize part of organic matter in the raw water and sterilize; secondly, the GT active biofilm treatment which is the core technology of the invention is carried out; in this step, flexible active biofilm is prefabricated in a GT active biofilm treatment device; the finished flexible active biofilm has the properties of high density, multilayer, hollowness and permeability and can remove more impurities in the water such as suspended matter, chroma, colloid, etc.; the GT active biofilm treatment device has the functions of ultrafiltration, decolorization and absorption of active carbon, removal of ammonia and nitrogen, and biochemical and anti-digestion of active facultative bacteria filter layer; finally, the effluent from the GT active biofilm is subject to reverse osmosis and desalination treatment, the water obtained finally can meet the requirements of water used in dyeing and printing production.

The invention relates to a water-saving and fertilizer-saving method used for cultivating rice in a straw mulching mode. The earth surface of a paddy field is uniformly covered with wheat straw or oilseed rape straw obtained after preceding crops are harvested; after irrigation and fertilization are conducted on the rice, the straw in the field is used for automatically absorbing water and fertilizer; after irrigation drying, the water and the fertilizer absorbed by the straw are released slowly, definite humidity in the field is kept, and therefore growth requirements of the rice are met; thus, the time interval between current irrigation and next irrigation can be prolonged, and the number of irrigation and the quantity of the fertilizer for the lifetime of the rice can be reduced. Comparative trials show that by the adoption of the technology of planting the rice by covering the whole earth surface with the straw, irrigation water capacity can be reduced by 20%-30% per mu, 90 m<3>-130m<3> can be saved per mu, the utilization rate of the fertilizer is improved by 8%-10%, and 15%-20% of the fertilizer is saved. The method has the advantages that raising of seedlings, transplanting of the seedlings, and soil preparation conducted in a ploughing and raking mode are omitted, and labor, cost and rice nursery beds are saved.

Directed at the current situation of the prior art and based on a circulating water flushing type ecological toilet, the invention aims to realize self-circulation, no emission, no picking and complete decomposition of water flushing type toilets. Through a current reactor and by the mode of anaerobiosis, anoxia, aerobiosis, anoxia, and anaerobiosis, a biological rotating disc is designed into a facultative pond with a special structure. A wood fiber bio-carrier bed is employed, and an ultrasound technology is adopted to perform a new internal circulation stirring process in the biological rotating disc facultative pond, an upflow type anaerobic tank, and an anoxic tank so as to accelerate decomposition and digestion of organic matters. Meanwhile, electro-adsorption, high-energy physics, an anaerobic and aerobic wood fiber integrated facultative tank and other technologies are adopted to conduct water treatment on fecal sewage. The invention can achieve through and complete decomposition of organic matters and eliminate malodor. The bio-environmental protection toilet needs no water supply, and the first supplied water can be circulated for use, so that no more water needs to be added. The toilet provided in the invention is an environmental protection toilet having no residue, precipitate, emission or pollutant.

The invention provides a steam recycling system, and belongs to the technical field of waste heat utilization. The steam recycling system comprises at least one steam device and a boiler, and the steam devices are circularly connected with the boiler through a pipeline. The steam recycling system has the advantages that redundant steam can be recycled, energy is saved, emission of carbon dioxide is reduced, production cost is reduced, and economic benefit is improved.

The invention provides a process for circularly producing thermoplastic barium sulfate phenolic resin by a precipitation method. The process comprises the following steps: according to a formula of synthetic resin, adding phenol, solid aldehyde and water into a reaction kettle with a cooler and a stirrer, heating to a temperature of 50 to 80 DEG C, depolymerizing and adding sulfuric acid to perform the catalytic reaction until a sampled sample is not sticky and is slightly hard in water with a temperature of 20 DEG C; cooling a reaction material to a temperature of 95 to 96 DEG C and adding barium hydroxide with stirring to stop the catalytic reaction; neutralizing the sulfuric acid by the barium hydroxide to generate water and barium sulfate precipitates, enabling the pH value of the reaction material to be 7, firstly carrying out normal pressure processing and then carrying out vacuum dehydration to obtain the semitransparent solid thermoplastic barium sulfate phenolic resin product and a polycondensation dehydration fraction; reusing the polycondensation dehydration fraction into the reaction kettle to carry out circular production. The process has zero discharge of wastewater, is beneficial to the environment protection, is suitable for industrial production and has good economic benefits.

The invention discloses a method for generating biogas by using cornstalk through dry fermentation. The method is characterized by comprising the following steps of: (1) cutting the cornstalk into small segments; (2) adding an equal quantity of water into the cornstalk, and soaking for 15-24 hours; (3) adding a composite microbial inoculant and an ammonium bicarbonate solution, so as to enable the moisture content of the cornstalk to be 60-80%; (4) piling up the cornstalk, punching, covering the surrounding parts and top part of the stack by using a film or cornstalk, and leaving seams at the top part; (5) maintaining the stack retting for 80-120 hours till a layer of white hypha can be seen on the stack; and (6) adding inoculum and carrying out anaerobic fermentation of the cornstalk in normal temperature of 25 DEG C. The method for generating the biogas, provided by the invention, is long in lasting time, high in biogas generation rate, low in sewage treatment expense and low in sulphur content, and can be directly used by a biogas engine without gas washing.

The invention relates to a domestic water-saving shower room capable of recycling stored water, which comprises a shower room, a lower-position water collecting tank, a water outlet of the shower room, a water collecting header pipe, a water outlet header pipe and a water overflow pipe, wherein the lower-position water collecting tank is positioned under the shower room; the water outlet of the shower room is communicated with the lower-position water collecting tank; the water collecting header pipe and the water outlet header pipe are positioned at the side of the lower-position water collecting tank and are communicated with the lower-position water collecting tank; the water overflow pipe is arranged at the bottom of the lower-position water collecting tank; and the height of the water overflow pipe is lower than the bottom of the shower room. After being actually used, the application proves that after the domestic water-saving shower room is used, more than 50% of domestic water can be saved, and tap water is basically not needed for flushing a closestool and a mop, so that the water-saving effect is very remarkable.

The invention discloses a recycling system for producing a wastewater by cellulosic ethanol, and simultaneously provides a technique for recycling comprehensive utilization on a cellulosic ethanol wastewater by using the system. Biogas fermentation adopts a serial fermentation mode of high-temperature biogas fermentation and medium-temperature biogas fermentation, so that the fermentation efficiency is higher, the biogas capacity is higher, the chemical oxygen demand (CODCr) removal rate can effectively achieve 95-98%, and fermentation is more thorough, so that the reuse rate of fermented effluent is effectively improved, consumption of fresh water resources is reduced, and the subsequent wastewater throughput and treatment cost are reduced. First-stage high temperature fermentation adopts quick and abundant fermentation to produce the biogas, so that 80-85% of organic matter in the wastewater is effectively converted into the biogas, and the method is efficient and fast. A second-stage fermentation tank is further fermented by medium-temperature fermentation, and the organic matter in the water is fully converted into the biogas, so that the effluent of the biogas fermentation tank is improved, the organic matter content in the effluent is reduced to below 2-5%, and the reuse rate of the wastewater produced by the cellulosic ethanol is greatly improved.

The invention is a 0.5 L body-cleaning squat WC pan, characterized by that: there is a urine stop installation wall at the front end of a cylinder body, a urine stop is arranged on the installation wall, there is a body-cleaning spray washing pipe provided with a nozzle arranged between the urine stop and the installation wall, the water inlet of the spray washing pipe is connected with the hose of a water valve, a control rod is connected with the nozzle and operated to move the nozzle down to avoid covering of the urine stop so as to spray-wash urination parts with hot water or liquid medicine; there is a water stop cover arranged at the rear end of the cylinder body to stop the water sprayed backward so as to make the water flow into urinal, a urinal washing pipe is erected on the water stop cover, one end of the urinal washing pipe is a water inlet end and the other end is a rotating end, there is a row of small holes arranged on the urinal washing pipe, and the rotating end rotates to turn on the water valve connected with the water inlet end and simultaneously the small holes can spray water to wash polluted inner surface of the cylinder body; tap water sprayed from the small holes has large impact force, 0.5 L consumed each time. And the whole system has characters of simple structure, low cost and convenient to operate.

A plate membrane sludge thicking processing technics relates to sludge thicking processing technique in sewage treatment process, which is applicable to thickening treatment of excess activated sludge or mixing sludge obtained from mixing excess activated sludge with primary sludge in sewage treatment process. Moisture of sluge is discharged by means of membrane water in ultrafiltration action of the plate membrane, the water quality get to wastewater reuse standard so can be used as wastewater reuse directly, and sludge can be thickened. The processing technics of the invention has advantages of small floor space, low operating cost, easy to realize automatic control, in municipal sewage treatment plants, the invention adopts plate membrane thickening tank to replace conventional gravity thickening tank, has good social benefit and economic benefit.

The invention relates to a sand cylinder cleaning agent. The sand cylinder cleaning agent comprises the following components in parts by weight: 25 to 38 parts of a detergent, 5 to 8 parts of a dispersant, 30 to 40 parts of a surfactant, 0.5 to 2 parts of a penetrant, and 1 to 3 parts of a chelating agent, wherein the detergent comprises at least two of sulfamic acid, sulfourea, hexamethylene tetramine, silicone oil and hydrochloric acid; the raw materials for preparing the dispersant comprise polyimide and phosphate; the surfactant comprises one or more of polyether, ethylene glycol butyl ether or coconut oil fatty acid diethanolamide. By the sand cylinder cleaning agent, grease and dirt in a sand cylinder can be effectively removed, so that the sand cylinder is unblocked, and the sand cylinder can be kept clean for a long time; the problem of sand hardening of the sand cylinder is solved, so that sand is changed more conveniently; the sand cylinder cleaning agent has the effects of sterilizing and disinfecting.

The invention relates to a new trap water-saving toilet. It is characterized in that horizontal sealing casing pipe is set under the sewage outlet of toilet cylinder; sealer is set in the horizontal sealing casing pipe; the opening port of sealer outer pipe is connected with the port of drain pipe hermetically; inner and outer pipes are separated by sealing material and are connected with each other hermetically; reset spring is set in the cavity of inner pipe; under the action of reset spring, the inner pipe withstands the sewage outlet at the bottom of trap of toilet cylinder to realize water storage hermetically; pulling wire is used to pull the pull rod on the inner pipe to compress the reset spring; the inner pipe is pulled to move backwards so that sewage outlet channel is formed by the sewage outlet of toilet trap, the opening port of outer pipe and drain pipe to realize sewage drain; delay water valve is switched on and spray washing pipe is used to washing toilet; the pull rod is reset under the action of spring so that the inner pipe withstands the bottom of toilet trap to realize sealing; water supplement is carried out; the delay water valve is adjusted in advance so that storing water achieves the regulate height and area. The invention can make water consumption of toilet decrease to a litre. Compared with the national standard water saving achieves more than 84% and water exchanging rate achieves to 100%. It is also provided with cleaning body.

The invention discloses cleaning equipment for livestock breeding. The equipment comprises a housing and a nozzle, wherein the nozzle is arranged in the top of an inner cavity of the housing; the nozzle is connected with a first water pump through a water pipe; the first water pump is arranged in the bottom on the left side of the outer surface of a water tank; the water tank is arranged at the right end at the top of the outer surface of the housing; an ozone generator is arranged at the left end at the top of the outer surface of the water tank; the ozone generator is connected with the water pipe through an ozone inlet pipe; a temperature sensor is arranged at the left end at the bottom of the inner cavity of the water tank; a pressure sensor is arranged at the right end at the bottom of the inner cavity of the water tank; a heating pipe is arranged in the inner cavity of the water tank. According to the cleaning equipment for livestock breeding, a flocculation reaction cabin is arranged, so that the purifying capacity on sewage can be effectively improved, and the power of hydrogen of sewage can be neutral; livestock can use purified water better in a more healthy manner, so that the water resources are saved, the water rate expenditure of people is reduced, and the pollution on the environment by sewage is further reduced, and the physical health of livestock is protected.

The invention provides oil refining and chemical sewage processing and recovering equipment and a method thereof. The equipment comprises a mixing reaction tank, an anti-blocking air-floatation pool, a multistage matched biological filter tank, a clean water tank, a precision filter, an ejector, an ozone generator, a mixer, an intermediate pool, a biology activated carbon filter and a clean water reservoir which are connected in order by a mechanical mode. If desalination is not required, the reuse water can be fed into an industrial pipe network for use, if desalination is required, a hollow ultrafilter membrane or a micro filter membrane and a reverse osmosis membrane, a desalinized water pool and the reverse osmosis membrane or the nanofiltration membrane and a machinery steam compression system are added. The multistage matched biological filter tank has effects of biodegradation of organic matter and filtering, purifying degree of polluted water can be increased, the hollow ultrafilter membrane or the micro filter membrane and the reverse osmosis membrane are employed for desalination treatment on the polluted water, the reuse water is better adapted to industrial application, and condensation and crystallization treatment can be carried out on the polluted water by the reverse osmosis membrane or the nanofiltration membrane and the machinery steam compression system, so that waste water is not discharged to outside.

A tap water tri-supply system relates to the field of supply and demand engineering of urban water. The tap water tri-supply system is a new tap water supply and demand system using different production methods, conveying ways and charge standards according to different water quality requirements, user numbers and usage amounts of three types of main urban water. The tap water tri-supply system is as follows: usage water for all users is produced by a clean natural water production method, is conveyed by original tap water pipe networks, and is freely charged and charged in a manner of penalty price for excess; water special for local users is produced by a qualified tap water production method, is conveyed by special pipe networks, and is charged in tap water price; drinking water for all users is produced by a nutritional, healthy and direct drinking water production method, is conveyed by barrel filling and car transport, and is charged in preferentially year-on-year price; by implementation of the tap water tri-supply system, a lot of energy and water resources can be saved, a large amount of water charge for the masses of users can be saved, at the same time, the quality of the usage water for the users and production profits of water factories are improved, and the tap water tri-supply system benefits the nation the people and the factories.

The invention relates to a processing method and a system of rinsing waster water in a printed circuit board. The method carries out the solid-liquid separation of the rinsing waste water, filters the waste water to control the particles in the waste water not to be larger than 30 micron and then filters the waste water to set discharge standard through a SiC porous ceramic filter leaf. The system comprises a solid-liquid separating device, a preliminary filtering unit and a depth-type filtering unit. The preliminary filtering unit uses a filtering net or a high molecular film to be a filtering element; the depth-type filtering unit comprises a multilevel filtering unit that uses the SiC porous ceramic filter leaf as the filtering element. The set level of the filtering unit causes drained water after filtering to meet the set standard. The invention adopts the physical filter and adsorption instead of the chemical reaction, thus having remarkable absorption and filter effect of heavy metal ions without introducing other substances. With low cost, little energy consumption, simple operation, small occupied area and wide application scppe, the invention has the good application outlook and the remarkable social benefits.

Disclosed is an ice making machine in which upon starting of ice making operation, a water level detecting switch (11) starts measurement, a water-supply-stop time (T1) being compared with a reference time (T2). When the water-supply-stop time (T1) is not longer than the reference time (T2), it is determined that the ice making machine is in an excessive-ice-making state, and control is performed so as to reduce the RPM of a fan motor (17) for cooling a condenser (15).

The technological process of treating domestic sewage for reuse includes the following steps: pre-treatment through adding strong oxidant in pre-treating pond, coagulation and reaction under stirring, and deposition in deposition pond for 1-2 hr; conventional physical and chemical purification; and secondary sterilizing treatment. The said process can degrade organic pollutant in domestic sewage efficiency, eliminate harmful and toxic matters and bacteria, and eliminate carcinogenic and mutagenic matters, and the treated water may be reused. The present invention is especially suitable for purifying water from swimming pool, bath room, etc.

The invention discloses an automatic control system for a water supply pump room based on big data analysis, which includes a primary water supply pump room, a plurality of secondary water supply pump rooms connected to the primary water supply pump room, and arranged in the primary water supply pump room and the secondary water supply pump room The wireless pressure sensor at the water outlet and the intelligent control terminal connected with the wireless pressure sensor, the primary water supply pump room is connected to the water source, the secondary water supply pump room is connected to the water terminal and used to supply water for the water terminal, and the secondary water supply pump room includes The water inlet pipe connected to the water supply pump room, the water outlet pipe connected to the water terminal, the pressure regulating pump arranged between the water inlet pipe and the water outlet pipe, the intelligent control terminal and the pressure regulating pump are connected in communication, and the wireless pressure sensor is arranged on the water outlet pipe. Compared with related technologies, the self-control system of water supply pump room based on big data analysis provided by the present invention can be adapted and automatically calculated, controlled and adjusted throughout the day. The invention also provides an automatic control method for a water supply pump room based on big data analysis.