60results about How to "Reduce water load" patented technology

The invention discloses an efficient treatment process for printing and dyeing waste water. In the invention, after printing and dyeing waste water is homogenated by a regulating tank and preaerated by a preaeration tank, the printing and dyeing waste water enters a primary precipitating tank to be precipitated; the precipitated waste water enters an oxygen deficiency or an aerobic membrane bioreactor to be treated, and chemical flocculants and biological microcarrier with an absorption function are thrown into an oxygen deficiency zone of the membrane bioreactor; waste water mixture liquid enters an aerobic zone from the oxygen deficiency zone, and is separated by a membrane assembly in the aerobic zone; clean water realizes standard discharge after being filtered by the membrane assembly, and biochemical or materialized mud with high concentration in the aerobic zone respectively returns to the oxygen deficiency zone and the preaeration tank; the biochemical or materialized mud returning to the oxygen deficiency zone is continuously recycled in the membrane bioreactor; and after the biochemical or materialized mud returning to the preaeration tank mixes with the homogenated printing and dyeing waste water for biochemical or materialized absorption and flocculation, the biochemical or materialized mud returning to the preaeration tank enters the primary precipitating tank to be precipitated, and the precipitated mud is discharged out of the system. The invention is not only applicable for the treatment of printing and dyeing waste water, and is also suitable for the treatment of other difficultly degraded waste water.

The invention relates to the field of textile printing and dyeing and in particular relates to a fabric dyeing wastewater treatment method. The treatment method comprises the following steps: collecting gray fabric wash liquid wastewater and wastewater produced in washing and pickling steps after rinsing, classifying and recovering dye residue liquid according to different dyes, collecting cleaning wastewater after dyeing, and treating the collected wastewater by adopting processes such as homogeneous adjustment, screen or filtering net filtration, air flotation, oxidization, biochemical treatment and advanced treatment performed in sequence. According to the technical scheme in the invention, the dyes can be recovered to the greatest degree, the wastewater treatment burden is reduced, recovery benefits are increased, the treatment cost is reduced, and good economic benefits and social benefits are achieved.

The invention discloses a method for realizing a stable biological nitrosation to a wastewater with low carbon nitrogen ratio and high nitrogen content. The method controls the aging of system sludge to 3 days and combines the operational methods of constant water-feeding and interval draining together. The method is carried out according to the following two phases: 1. sludge seeding and incubation phase: firstly the seeded sludge is put into a reactor and the incubation time is 20 days, and an activated-sludge SBR nitrosation process combining constant water-feeding and interval-draining is adopted as the beginning of incubation; 2. stable biological nitrosation operational phase: the activated-sludge SBR nitrosation process combining constant water-feeding and interval-draining which is successfully started is preserved, and the wastewater with low carbon nitrogen ratio and high nitrogen content is adopted as water supply, and the feeding-draining flow each week is a half of the volume of the reactor, the system sludge aging is preserved to be 3 days, and the DO concentration of the reactor is 1.5 to 2mg per L, and the operational cycle is 12 hours. The invention realizes a stable and constant biological nitrosation to the wastewater with low carbon nitrogen ratio and high nitrogen content, and the nitrosation system has better NH4 <plus> minus N degradation rate and higher nitrosation rate.

The invention discloses a technique for preparation of industrial ultrapure water, which contains: first-rate hyperfiltration of the pretreated water, through the degassing device and electric desalinization, after first-rate hyperfiltration of said pretreated water to desalt, adding acid; after decarbonation by degassing device, adding alkali; then flowing into electric desalinization instrument for fine desalinization to prepare industrial ultrapure water. According to the work characteristic of degassing film and electric desalinization instrument (EDI); using the decarbonation technique of adding acid- decarbonation- adding alkali' and strong electrolytes replacing weak electrolytes, it is convenient for deep desalinization by electric desalinization instrument.

Provided is a water-level-variable terminal catchment inclined tube or inclined plate sedimentation tank. The invention relates to a sedimentation tank to solve the problem that the water in conventional inclined tube/inclined plate sedimentation tanks can not adjust with the change of influent load, and the gathered water yields in effluent weirs are large. A plurality of effluent weirs are disposed on the top of rear section of a tank body. A plurality of stand columns are disposed on the terminal section of the tank body water inlet terminal and any longitudinal sides of the tank body. A fixed flashboard and a movable flashboard which are mutually parallel are arranged between each two stand columns. The fixed flashboards are located on the outside of the tank body. The movable flashboards are located inside of the tank body. The lower terminal faces of the fixed flashboards and the movable flashboards are all provided with a plurality of water inlet holes. The above of each movable flashboard is provided with a hoist. Start and stop levers on the hoists are connected with the movable flashboards. Both sides of each effluent weir are respectively provided a lifting board. The lower terminal of each lifting board is uniformly provided with a plurality of lifting rods along the length of the lifting board. The lower terminal of each lifting rod is provided with a regulator. The sedimentation tank is used for removing the water turbidness.

The invention discloses a rapid start method for an anaerobic ammonia oxidation reactor. The rapid start method comprises the following steps: by using a dynamic membrane bioreactor and by taking aerobic sludge and/or anaerobic sludge as inoculums, controlling the concentration of ammonia nitrogen and nitrite nitrogen of fed water, feeding a nutrient solution, filtering off the water by using a dynamic membrane, and enabling the reactor to continuously operate for at least 30 days, thereby achieving rapid domestication and enrichment of anaerobic ammonium oxidation bacteria inside the bioreactor. The rapid start method is applicable to anaerobic ammonia oxidation denitrification treatment on municipal sewage and industrial wastewater, and has the advantages of rapid start, high treatment efficiency, stable system operation, good effluent effect, low cost and the like.

The invention provides a slight-splashing high-performance two-hull amphibious aircraft which comprises an aerodynamic lift type main fuselage, wings, empennages, turbofan engines and slight-splashing sliding hulls. The wings 2 are arranged in the middle of the aerodynamic lift type main fuselage. The turbofan engines are arranged on the upper position, near the aerodynamic lift type main fuselage, of the wings. The empennages are arranged at the tail end of the aerodynamic lift type main fuselage. The two slight-splashing sliding hulls are arranged on the two longitudinal sides of the lower portion of the aerodynamic lift type main fuselage. A longitudinal aerodynamic groove channel 5 is formed after the connection of the two slight-splashing sliding hulls and the aerodynamic lift type main fuselage. The aerodynamic lift type main fuselage is provided with reverse profile planing steps which divide the aerodynamic lift type main fuselage into a front fuselage body and a rear fuselage body. An upper transverse bent sliding face and a lower transverse bent sliding face are arranged in the position, at the bottom of each slight-splashing sliding hull, on the sliding face of the front fuselage body sequentially from inside to outside. The anti-wave ability of the amphibious aircraft is improved, and the amphibious aircraft has an excellent hydrostatic and wave splashing controlling ability to adapt to a more complex marine environment.

The invention discloses a sewage treatment system and method for strengthening anaerobic ammonia oxidation denitrification and dephosphorization of domestic sewage. The sewage treatment system comprises a filtering module, an anaerobic-aerobic-anoxic baffled reactor (AOABR) module, a water distribution module and a combined constructed wetland module which are connected in sequence. The AOABR module is arranged at the front end of the combined constructed wetland module; the intermittent micro-aeration AOABR can reduce the organic load entering a constructed wetland, reduce the wetland blockage risk, improve the abundance of anaerobic ammonia oxidation autotrophic bacteria in a first-stage saturated flow wetland, retain an ammonia nitrogen substrate required by anaerobic ammonia oxidationreaction and create a micro-aerobic condition on the surface layer of the wetland to form a nitrite nitrogen substrate; under the condition of low organic matter load, the mutual benefit and symbiosisof denitrifying phosphorus removal bacteria and anaerobic ammonium oxidation bacteria in a saturated flow wetland are also facilitated, the coupled synergistic removal of nitrogen and phosphorus is realized under the conditions of low energy consumption and carbon limitation, and the removal efficiency of total nitrogen and total phosphorus can be up to 90% or above by combining multistage saturated and unsaturated flow wetlands.

The invention relates to a treatment system and a treatment method of oil refinery alkaline residue wastewater. The treatment system comprises a waste alkali storage tank, a denitrification unit, a primary biochemical unit, a secondary biochemical unit, an ozone catalytic oxidation unit and a nitration unit. The treatment system and the treatment method have the advantages of effective and stable removal of most CODs from the alkaline residue wastewater, mitigation of the treatment load of a subsequent common biochemical treatment technology, improvement of the impact resistance of a whole sewage treatment plant, stable quality of outlet water, simplicity in operation, and low engineering cost and running cost, and can be widely applied to the field of high-concentration alkaline residue wastewater treatment of the oil refining petrochemical industry.

The invention discloses a preparation method of an epinastine hydrochloride fine granule. According to the preparation method, a composite flavoring agent is prepared from aspartame, sucralose, and glycyrrhizic acid monoammonium S at a mass ratio of 8:1:1, a sweet filler is taken as an assistant agent, and synergistic effect is achieved via adding an appropriate amount of an essence, so that the bitter taste of epinastine hydrochloride is covered effectively, and patient drug compliance is improved. According to the preparation method, problems that epinastine hydrochloride fine granule particle size distribution range is relatively wide, and much particle fine powder is generated are solved effectively via controlling on parameters such as adhesive aqueous solution concentration, fluidized bed temperature, and drying time, and stable and uniform granules are obtained. The auxiliary materials of the preparation method are cheap and easily available; preparation is simple; no special equipment is needed; production cycle is short; cost is low; and the preparation method is suitable for industrialized production.

The invention relates to a monitoring system for the water quality safety of drinking water. The monitoring system comprises a water plant regulation and control device and a water source regulation and control device, wherein the water plant regulation and control device comprises a raw water quality toxicity online monitor, an effluent water quality toxicity online monitor and a water plant center control PC (Personal Computer) machine; the raw water quality toxicity online monitor and the effluent water quality toxicity online monitor are connected with the water plant center control PC machine through a signal line; the water source regulation and control device comprises a water source water quality toxicity online monitor and a water source center control PC machine installed on a drinking water source water quality control point; the water source water quality toxicity online monitor is connected with the water source center control PC machine in a wireless communication way; the water source center control PC machine and the water plant center control PC machine are connected through a wireless communication way or a network communication way. The invention also relates tothe monitoring system for the water quality safety of the drinking water and a processing method thereof which are realized through the devices, so that a water plant technology can quickly respond tosudden water pollution problems, and therefore, the safety of effluent water is guaranteed.

The invention relates to the technical field of industrial wastewater, and discloses an internal circulation anaerobic reaction system, which comprises an anaerobic tank body, and is characterized inthat a reaction region is arranged in the anaerobic tank body; A biogas collection chamber is arranged at the top of the anaerobic tank body and connected with the water seal tank through a biogas collection pipe and a biogas main pipe, the water seal tank is connected with a biogas outlet pipe, and biogas is discharged through the biogas outlet pipe; An effluent weir is arranged at the inner topof the anaerobic tank body and is provided with a water outlet pipe; A three-phase separator is arranged at the inner top of the anaerobic tank body; A water distribution device is arranged at the bottom of the anaerobic tank body; A jet device is arranged at the outer bottom of the anaerobic tank body, a water outlet of the jet device is connected with the part, located outside the anaerobic tankbody, of the water distribution device, a gas guide port of the jet device is connected with a biogas main pipe through a biogas guide pipe, and a water inlet of the jet device is connected with a circulating water pipe arranged between the three-phase separator and the effluent weir. The reaction speed of wastewater and sludge can be increased, the sludge removal effect is improved, and sludge deposition is avoided.

The invention discloses a system for concentrating and reducing desulfurization wastewater by using flue gas waste heat. The system comprises a dust remover, an induced draught fan, a flue channel with a spraying device, a desulfurization island, a water collection tank, a solid-liquid separator, an intermediate water tank and a concentration tank which are successively in conduction connection with each other, wherein the concentration tank is communicated with the intermediate water tank. The invention also discloses a process for concentrating and reducing desulfurization wastewater by using flue gas waste heat. The process comprises the following steps: (1) flue gas dust removal; (2) mass transfer and heat transfer of flue gas and water; (3) condensation in the desulfurization island; and (4) post-treatment of desulfurization wastewater. The step (4) of post-treatment of desulfurization wastewater comprises the following substeps of successively treating the desulfurization wastewater through the water collection tank, the solid-liquid separator and the intermediate water tank; collecting the desulfurization wastewater through the water collection tank, separating the desulfurization wastewater into sludge and water through the solid-liquid separator, enabling the water to flow into the intermediate water tank for circulation concentration and applying the water to spraying of the step (2). Through the system for concentrating and reducing desulfurization wastewater by using flue gas waste heat and the process thereof, the high-temperature flue gas is used for evaporating and concentrating the desulfurization wastewater, so that the water load entering the curing unit is reduced, and the cost of the concentration technology of the desulfurization wastewater is reduced; when the temperature of the flue gas is reduced, the water consumption in the desulfurization island is reduced, so that the water consumed by the desulfurization process is indirectly supplemented; the process is obvious in economic benefit.

The invention relates to the technical field of railway tunnel construction, in particular to an open cut tunnel waterproof and drainage system. The system involves a tunnel wall and a tunnel invertedarch, a central drainage pipe is arranged below the tunnel inverted arch, longitudinal drainage pipes are arranged on the two sides of the tunnel wall and arranged in the tunnel direction, multiple water permeable holes are formed in the upper portions of the longitudinal drainage pipes, and the longitudinal drainage pipes are connected with the central drainage pipe through transverse drainage pipes. According to the system, the back drainage capacity of an open cut tunnel lining can be enhanced, underground water is effectively drained, the water load around the tunnel lining is reduced, meanwhile, the anti-floating and cold-proof effects are achieved, the waterproof and drainage problems of the tunnel open cut tunnel lining in a high-water-level stratum in a cold region are solved, andthe freezing damage to the tunnel open cut tunnel is effectively reduced.

The invention discloses the field of integrated sewage treatment equipment with a front-end pretreatment function. The equipment comprises an adjusting tank, an integrated sewage treater, a water production tank and a water distribution well, wherein algae and photosynthetic bacteria are arranged in the water distribution well; an aerator is arranged at the bottom of the water distribution well, and the aerator is connected with an air blower; the adjusting tank is connected to the water distribution well through a water pump; the lower part of the water distribution well is connected into ananoxic tank through a water pump. Under the stirring action of the aerator in the water distribution well, on the premise that dissolved oxygen in the tank is not increased, the phenomena that sludgeis accumulated for a long time, deteriorates and smells and floats upwards due to anaerobic reaction are prevented, and the effect of improving the environment in the tank is achieved; an algal-bacterial symbiotic mode is formed in the water distribution well, so that the sewage pretreatment effect is greatly improved, the water feeding load of integrated sewage treatment equipment is obviously reduced, and the water discharge stability of the system is enhanced. The operation is simple, the energy consumption is reduced, and the investment cost is saved.

The invention provides a method for integrally treating coking wastewater, which is based on engineering practice of treating the coking wastewater based on a high-efficiency integrated innovative process technology of miscible nano air flotation enhanced flocculation, A2O, a biological fluidized bed, multi-medium filtration, catalytic ozonation, ultrafiltration and reverse osmosis. The technical purposes of zero dilution and zero discharge of the coking wastewater and reuse of 64% of the wastewater to a coking circulating water supply system are achieved, main advanced technical indexes such as COD (Chemical Oxygen Demand) of effluent of the treated wastewater is less than or equal to 30mg/L, ammonia nitrogen is less than or equal to 5mg/L and the like, and particularly for concentrated water generated by a membrane filtration process, after the technical measures of adopting a special cyanide removal agent and performing coagulating sedimentation treatment, the effluent of the treated wastewater is subjected to zero dilution and zero discharge and 64% of the wastewater is recycled to a coking circulating water supply system. And the water quality index completely meets the Emission Standard of Pollutants for Coking Chemical Industry (GB16171-2012).

The invention discloses a sewage treatment system and a sewage treatment method, and relates to the technical field of sewage treatment. The sewage treatment system comprises an advanced oxidation subsystem, a biochemical oxidation subsystem, a first sedimentation tank and a first supernate pipeline, and an outlet of the advanced oxidation subsystem is communicated with an inlet of the biochemical oxidation subsystem. And the outlet of the biochemical oxidation subsystem is communicated with the inlet of the first sedimentation tank. The first sedimentation tank is provided with a supernatant discharge port, and the supernatant discharge port is communicated with an inlet of the advanced oxidation subsystem through a first supernatant pipeline. According to the scheme, the technical problem of relatively long technological process of a pyrolysis sewage treatment system in related technologies can be solved.