68results about How to "Increased resistance to shock loads" patented technology

The invention provides equipment and a method for treating nondegradable wastewater by utilizing catalytic oxidation of ozone. The equipment comprises a feeding system, an ozone catalytic reaction tower and a spray absorbing tower; the feeding system comprises a wastewater pH regulation device, a wastewater feeding pipeline, a hydrogen peroxide aqueous solution feeding pipeline, an ozone feeding pipeline and a pH regulator feeding pipeline; the wastewater pH regulation device is communicated with the wastewater feeding pipeline and the pH regulator feeding pipeline respectively; the ozone feeding pipeline is communicated with the wastewater feeding pipeline; the ozone catalytic reaction tower is communicated with the wastewater feeding pipeline and the hydrogen peroxide aqueous solution feeding pipeline respectively so that wastewater undergoes once catalytic reaction in the presence of a first catalyst to generate a liquid flow and an ozone tail gas flow which are subjected to initial treatment; and the spray absorbing tower is communicated with a catalytic reaction system, is used for spraying at least one part of the liquid flow which is subjected to the initial treatment, and is contacted with the ozone tail gas flow in the presence of a second catalyst to undergo second catalytic reaction.

The invention discloses a desulfurized wastewater treatment process. Firstly, NaOH or lime milk is added into the acidic desulfurized wastewater so as to adjust the pH value to be 8 to 9; then, the desulfurized wastewater is pumped into an electric flocculation treatment device by a pumpp, effluent after electric flocculation treatment enters an inclined pipe settling tank so as to be further treated, and then the treated wastewater reaching the standard is discharged or reused. The scruff discharged by the electric flocculation treatment device and the settled sludge discharged by the inclined pipe settling tank enter a sludge thickening tank so as to be further concentrated; the concentrated sludge is pumped into a sludge dewatering machine so as to be dried; and the dried sludge is shipped out for disposal, and the supernatant in the thickening tank and the filter-press fluid in the dewatering machine flow back to a regulating reservoir. The treatment process is characterized by simple flow and good treatment effect.

The invention relates to a pharmaceutical chemical wastewater treatment device and a treatment method thereof. The treatment device comprises a vertical flow type coagulative precipitation tank, a catalysis zero valence bimetallic packing tower, a Fenton-like reactor, an anaerobic MBBR (Moving Bed Biofilm Reactor) pool, an aerobiotic MBBR pool and a solid-liquid seperation system which are sequentially connected. The treatment method is a catalysis zero valence bimetallic- Fenton-like-MBBR coupling treatment method. The treatment device has the advantages of being capable of simultaneously treating multiple organic pollutants, occupying a small area and being simple in structure and easy for finalization and industrialization. The catalysis zero valence bimetallic packing tower enables the performance of reducing and treating degradation-resistant organic matters to be stronger, does not harden after running for long-term and is suitable for a wide pH value range and low in operating cost, and the consumption of metallic iron is little. The Fenton-like reactor is faster in oxidation reaction rate and suitable for the wide pH value range. The pharmaceutical chemical wastewater treated by the wastewater treatment method provided by the invention can reach the new emission standard of wastewater in a pharmaceutical chemical industry.

The invention belongs to the technical field of drinking water and sewage treatment, and specifically relates to a water treatment method and equipment of a photocatalytic composite membrane bioreactor for removing micro pollutants out of water. The process mainly consists of an aeration tank and other auxiliary devices. Sewage containing micro pollutants enters the aeration tank. An ultraviolet lamp tube loaded with a titanium dioxide catalyst is vertically distributed at the center in the tank, and the outer layer of the lamp tube is encircled by a membrane assembly and a biological membrane carrier mainly loaded with nitrifying bacteria in sequence. One part of micro pollutants in the sewage are removed by virtue of ultraviolet photo-catalysis, the biological membrane and ammonia nitrogen-containing wastewater generate nitration reaction to remove ammoniacal nitrogen, and in the nitration process, the biological membrane generates co-metabolism with the micro pollutants to further remove the pollutants. The process can have stable and efficient removing effect on various micro pollutants under a low-concentration organic carbon source condition.

The present invention relates to an ultrasonic atomization treatment process of electric power plant desulfurization wastewater. According to the process, desulfurization wastewater is conveyed into a pH value adjusting pool; one or a plurality of materials selected from lime, limestone, sodium hydroxide and sodium carbonate are added to the pH value adjusting pool so as to produce partial heavy metal hydroxides and self-flow into a reaction pool; an organic sulfide is added to produce precipitates such as mercury sulfide and copper sulfide, and the precipitates self-flow into a flocculation pool; an iron salt, a polymer flocculant, and a coagulant are added to condense suspended solid particles dispersed in the wastewater and partial COD into the centralized floc; the clear water of the flocculation precipitation pool overflows into a final oxidation neutralization box from the upper portion, an oxidizing agent and a neutralizing agent are poured by using an ultrasonic atomization manner, and the COD in the water is completely oxidized in an atomizing state; and the sludge is subjected to dewatering utilization, and the sewage discharge meets the standard. According to the present invention, the process is simple, and the contaminant removal effect is good.

The invention discloses a wavy subsurface-flow constructed wetland landscape water body treatment system and method. The system combines a horizontal subsurface-flow constructed wetland with a vertical subsurface-flow constructed wetland to form a wavy subsurface-flow constructed wetland. By means of regularly arranging upper clapboards and lower clapboards inside the wetland and replacing a horizontal flow state with a wavy flow state, sludge flows in a plurality of modes which are connected in series and alternate in upstream and downstream flows, so that organic nutrient substances are sufficiently degraded to remarkably promote deposition of phosphorus; the sludge is repeatedly subjected to anaerobic and aerobic treatment, so that removing of nitrogen can be facilitated; appropriate limestone is added into the filler of the wetland to release Ca<2+>, so that phosphorus in the sludge generates insoluble deposition of calcium phosphate, and thus the removal rate of phosphorus is increased. Due to the adoption of modes, such as intermittent water distribution, water inflow to a water distribution pipe by forming openings in the bottom as well as serial or parallel operation of a plurality of wavy subsurface-flow constructed wetlands, the bed body of the constructed wetland plays a relatively large efficiency, the removal rate of nitrogen phosphorus and organic matters is increased and the sludge treatment capability is enhanced.

The invention discloses a kitchen waste (food waste) treatment method which is used for fine treatment and anaerobic digestion of the kitchen waste (food waste). The method mainly comprises three major steps of: enzymolysis pretreatment, solid-solution separation and anaerobic fermentation, wherein the steps are connected through plate chain machines and helixes or pipelines. The major innovationpoint is that an enzymolysis process is added in a kitchen waste (food waste) pretreatment process, and the enzymolysis process can promote hydrolysis of proteins in the crushed kitchen waste (food waste), so that a utilization rate of organic substances and a biogas yield at an anaerobic digestion stage are increased; meanwhile, the method realizes efficient separation of dry and wet materials through a high-pressure extruding mode, and is complete in solid-liquid separation; and moreover, pressure is set for quickly separating out organic substance slurry from the kitchen waste (food waste),so that the separating effect is good, and therefore, the kitchen waste (food waste) treatment method can be widely applied to the kitchen waste (food waste) treatment field.

The invention discloses a staged hard ecological drainage channel for a farmland. After an original hard drainage channel is mounted, a local migration path of one part of drained water in the channelis changed by virtue of diversion, reversal flow, turbulence and the like, and retention time is prolonged. Moreover, due to filtration, adsorption, absorption and degradation effects of packing substrates, plants, microbes and the like, drainage pollutants are preliminarily intercepted and purified, drained water with small flow and high pollution degree is subjected to staged interception and purification according to a hydraulic engineering design of a standardized farmland on premise of not influencing normal hydraulic engineering requirements, the hard drainage channel is subjected to ecological reconstruction, and the content of pollutants in the drainage channel is reduced, so that the interception and purification effects of the original channel on farmland drainage are improved.Moreover, the whole staged hard ecological drainage channel for the farmland is simple in design, the original hard drainage channel is reconstructed into a linear wetland system with environmental benefits and ecological benefits, farmland drainage pollutants can be effectively treated, and impact load resistance of a regional field parcel non-point source pollution control system is improved.

The invention belongs to the technical field of water treatments, and particularly relates to a denitrification purification method for wastewater containing high concentration nitrate ions. The method comprises that denitrification bacterial adopts a carbon source as an electron donor in an anoxic tank filled with nitrate-containing wastewater to convert nitrate ions into nitrogen gas and concurrently produce a large amount of alkalinity, wherein the anoxic tank comprises a first-segment anoxic tank and a second-segment anoxic tank, effluent of the first-segment anoxic tank enters the second-segment anoxic tank, and an acid regulation agent is poured at the front end of the second-segment anoxic tank to adjust the system to achieve weak alkality. According to the technical scheme, the acid regulation agent is poured at the front end of the second-segment anoxic tank to control alkality of the system and easily carry out a denitrification reaction of the second-segment anoxic tank, a removal rate of the nitrate ions is substantially increased and a biochemical reaction effect in the anoxic tank is substantially improved through the second-segment anoxic tank, and drainage requirements are met.

The invention relates to a rotary-type wastewater treating device, comprising a container, wherein a rotating shaft is arranged in the container; a toothed rotating disc with the rotating shaft as the axis is arranged at one end of the rotating shaft; two groups of cylinders with the rotating shaft as the center are arranged on the rotating disc; a slit is formed on the cylinder; a driving device is arranged on the container and connected with the rotating disc through a chain; a water outlet pipe and a dredge pipe are arranged on the sidewall of the container on which the driving device is mounted; and a water inlet pipe and a blow-down pipe are arranged on the other corresponding sidewall of the container. The rotary-type wastewater treating device is capable of thoroughly stirring the wastewater, and simultaneously capable of charging oxygen; and a micro-electrolytic material can be filled in the cylinders so that electrochemical and physical treatment processes are realized and caking and blockage can be prevented.

The invention discloses an integrated shortcut nitrification/anaerobic ammoxidation reactor which comprises a reactor body, a base and a support, wherein the reactor body is fixed on the base; the inside of the reactor body is provided with a central shortcut nitrification unit and a peripheral anaerobic ammoxidation unit from the center to the periphery; the central shortcut nitrification unit is divided into a water outlet region, a reaction region and a first water inlet region from top to bottom; a first baffle with a middle grid on the bottom is arranged between both sides of the water outlet region and the peripheral anaerobic ammoxidation unit; the first baffle is fixed on the reactor body; and the peripheral anaerobic ammoxidation unit is divided into a second water inlet region, a first reaction region, a connection region and a second reaction region from inside to outside. According to the invention, the shortcut nitrification unit and the anaerobic ammoxidation unit can be operated independently or be used together, and coupling of two reactions can be realized in the single reactor to treat high ammonia nitrogen wastewater.

The invention relates to an integrated domestic sewage treatment device, which is suitable for integrated treatment of rural (villages and towns) domestic sewage far away from municipal drainage pipelines, and is characterized by comprising a biochemical reaction tank, wherein the biochemical reaction tank is divided into a main reaction zone and a pre-reaction zone by a division plate, the main reaction zone is communicated with the pre-reaction zone through a bottom connecting port of the division plate, the pre-reaction zone is communicated with a biological selection zone, the biological selection zone is connected with a winding shaft through a pipeline and a lifting pump, and a grizzly screen is arranged between the winding shaft and a domestic sewage inlet; a jet aeration machine, a sludge reflux pump and a decanter are arranged in the main reaction zone; and the decanter is connected with a water outlet pipe, and a sludge outlet of the sludge reflux pump is connected with a sludge tank, the biological selection zone and the pre-reaction zone respectively.

The invention discloses a miniature no-decanter SBR integrated sewage processing system. The miniature no-decanter SBR integrated sewage processing system comprises a control apparatus, an equalizing tank, a device room, a SBR reaction tank and a clean water tank; a sewage elevator pump and an aeration apparatus are arranged in the device chamber, an inlet of the sewage elevator pump is communicated with the bottom of the equalizing tank, the outlet of the sewage elevator pump is communicated with the upper part of the SBR reaction tank; the aeration apparatus is communicated with the SBR reaction tank; a center water distributor is arranged in the SBR reaction tank, the center water distributor and the water outlet of the elevator pump are communicated; an downcast pipe is arranged between the equalizing tank and the SBR reaction tank, a downcast electrically operated valve is arranged on the downcast pipe; the control apparatus is used for controlling the sewage elevator pump, the aeration apparatus and the downcast electrically operated valve. The sewage is sent to the bottom of the SBR reaction tank by the center water distributor, at the same time, the water at the upper part of the SBR reaction tank is discharged to a clean water tank, so that SBR sewage treatment of a no-decanter is realized. An integrated design of the equalizing tank, the device chamber, the SBR reaction tank and the clean water tank is employed, so that the process flow is shortened, land occupation area is small, and the construction cost is low.

The invention discloses a skid-mounted water purifying device of oil producing wastewater, comprising a skid bottom plate, a water purifier and a self-washing filter, wherein the water purifier and the self-washing filter are arranged on the skid bottom plate; the water purifier comprises a water purifier shell and a top plate; the water purifier shell is internally provided with a central water distributing pipe, an inclined pipe solid-liquid separation device and a water feeding pipe; the top plate is connected with an oil scraper and a mud discharging mechanism is arranged at the bottom of the central water distributing pipe and a water inlet pipe of the water purifier is connected with the lower part of the central water distributing pipe; the top of the central water distributing pipe is connected with an oil-water separation partition plate; the oil-water separation partition plate is connected with a plurality of flow guide pipes; the lower parts of the flow guide pipes are connected with trumpet-opening-shaped water distributing pipes; the bottom of the oil scraper is connected with an oil collecting pipe and the water purifier shell is connected with an oil discharging pipe; and the water inlet pipe of the water purifier, which is connected with the self-washing filter, is connected with a water outlet pipe of the water purifier. The skid-mounted water purifying device of the oil producing wastewater disclosed by the invention has the advantages of compact structure, novel and reasonable design, strong configuration flexibility, simplicity and convenience for operation, safe, stable and reliable operation, good treatment effect on the oil producing wastewater, strong practical applicability, and high popularization and application values.

The invention discloses a system and method for treating black and odorous stagnant water, and belongs to the technical field of water restoration. The system comprises a mixing zone, an anoxic zone, an aerobic zone, a stabilizing zone, enclosures and a backflow pipeline. The enclosures include the enclosure I, the enclosure II and the enclosure III and divide a riverway into the mixing zone, the anoxic zone, the aerobic zone and the stabilizing zone in sequence in the water flow direction, the mixing zone and the anoxic zone are separated through the enclosure I, the anoxic zone and the aerobic zone are separated through the enclosure II, the aerobic zone and the stabilizing zone are separated through the enclosure III, and the stabilizing zone and the mixing zone are connected through the backflow pipeline. The stabilizing zone is used for stabilizing water quality and enabling bottom backflow liquid to flow back to the mixing zone. The system has the advantages of being strong in pollutant removal pertinence and high in removal efficiency, fully guarantees the improvement of the circulating and self-purifying capabilities of the water and the restoration of the ecological function of the water and also has the advantages of being capable of reducing investment and good in operating effect.

The invention relates to a microbial gel ball embedded with thermophilic denitrifying bacteria as well as a preparation method thereof. The microbial gel ball comprises the following components with the weight adding proportion: an embedding agent solution to a crosslinking agent to denitrifying bacteria-containing microorganisms is (3-4):(1-2):(2-3). The preparation method comprises the followingsteps: preparing the embedding agent solution, heating and melting the embedding agent solution, cooling, adding the denitrifying bacteria-containing microorganisms into the cooled embedding agent, mixing, adding the crosslinking agent dropwise to form a ball, performing cold storage until hardening, and washing out the crosslinking agent on the surface to prepare a product. The density of the microbial gel ball is increased by adding reduced iron powder and the settling performance is improved; meanwhile, chemical reaction is conducted by utilizing the reducibility of the iron powder and thedenitrification efficiency is improved. The microbial gel ball has higher activity and higher efficiency under the condition of low temperature; and the active sludge efficiency of the embedded microbial gel ball is higher than that of the non-embedded microbial gel ball with the equal biomass, and the biomass required by the embedded microbial gel ball is less than that of the non-embedded microbial gel ball under the condition of equal removing efficiency.

The invention provides a micro-electrolysis catalysis strengthening hydrolytic acidification reactor. The micro-electrolysis catalysis strengthening hydrolytic acidification reactor is characterized by comprising a water distribution and gas distribution area, a hydrolytic acidification area, a two-phase separation area and a catalysis strengthening micro-electrolysis area from the bottom up. The reactor provided by the invention is uniform in water distribution, uniform and controllable in gas distribution, unlikely to blockage and high in liquid and solid separation effect and shock load resistance, effectively improves the biodegradability of wastewater, and is suitable for treatment of recalcitrant sewage; trials show that the water inflow COD can be up to 50,000 mg/l, and the COD removal rate can reach 41%.

The invention discloses a novel UASB (Upflow Anaerobic Sludge Blanket) combined ABR (Anaerobic Baffled Reactor) granular sludge reactor and relates to the field of wastewater treatment in the brewingindustry. The novel UASB combined ABR granular sludge reactor comprises a first reaction chamber, a second reaction chamber, an ABR reaction chamber, a sludge settling zone and a gas storage chamber,wherein the first reaction chamber is positioned below the second reaction chamber; an air guide sleeve is arranged at the middle of the first reaction chamber; the first reaction chamber is a diffuser speed increasing reaction chamber; the ascending velocity of liquid in the reaction chamber is far higher than that of a traditional UASB reactor, the contact between the wastewater and microorganisms is intensified, and the reaction rate is greatly improved. The invention further discloses a method for treating the wastewater in the brewing industry by using the novel UASB combined ABR (Anaerobic Baffled Reactor) granular sludge reactor. Compared with a traditional method, the method disclosed by the invention has the advantages that the treatment time is greatly shortened, the treatment efficiency is improved, and the consumption is reduced.

The invention discloses a snail, mussel, fish and grass symbiotic purification system for ecological restoration of surface water, and relates to the technical field of surface water restoration, the snail, mussel, fish and grass symbiotic purification system is arranged in a river to be restored, and the snail, mussel, fish and grass symbiotic purification system is arranged in a three-dimensional space in the river to be restored. The snail, mussel, fish and grass symbiotic purification system comprises a fixing mechanism, a power mechanism, snails, mussels, fishes and grass. The three-dimensional spatial symbiotic purification system composed of snails, mussels, fishes and grass is constructed, and the capacity of efficiently absorbing and degrading pollutants is achieved; the three-dimensional spatialization snail, clam, fish and grass symbiotic purification system is high in stability, the impact load resistance is enhanced, and the impact of rainwater pollution load in the initial stage of the rainy season is greatly relieved; the snail, mussel, fish and grass symbiotic purification system has high removal capacity on eutrophication substances such as nitrogen and phosphorus, and water eutrophication is avoided.