54results about How to "Strong resistance to water impact" patented technology

The invention discloses preparation and an application of fixed-type bioactive fillers, and belongs to the technical field of water treatment. Fillers are each composed of a carrier and an embedding body, and the fillers are fixed on a prefabricated frame to form the fixed-type bioactive fillers; each carrier is composed of multiple layers of polyvinyl alcohol non-woven fabrics and one layer of textile fabric; each embedding body is formed by boric acid cross-linking fixation of an embedding liquid; the embedding liquid is formed by mixing an bacteria concentrated solution and a polyvinyl alcohol solution. Each carrier is soaked in the embedding liquid, the non-woven fabrics and the embedding body are firmly bound together through boric acid secondary cross-linking, the embedding body penetrates through textile fabric meshes to form a riveting fixing structure and does not easily fall off, and the good tensile property of the textile fabric improves the overall stability of the bioactive filler. The prepared bioactive fillers not only solve the problems that bacteria in an activated sludge method are low in concentration, easy to lose and the like, have the advantages of simple method, cheap raw materials, high strength, good stability, strong water flow shocking resistance ability and the like, shorten the reaction start-up time, and have broad application prospects.

The invention discloses ammonia oxidizing bacteria fixed-type bioactive fillers, and preparation and an application thereof, and belongs to the technical field of water treatment. Bioactive fillers are each composed of a carrier and an embedding body loaded with ammonia oxidizing bacteria, and the fillers are fixed on a prefabricated frame to form the fixed-type bioactive fillers; each carrier is prepared by sewing multiple layers of polyvinyl alcohol non-woven fabrics and one layer of textile fabric; each embedding body is formed by boric acid cross-linking immobilization of an embedding liquid; the embedding liquid is formed by mixing an ammonia oxidizing bacteria concentrated solution and a polyvinyl alcohol solution. Each carrier is soaked in the embedding liquid, through boric acid secondary cross-linking, the non-woven fabrics and the embedding body are firmly bound together, the embedding body penetrates through textile fabric meshes to form an overall riveting fixing structure and does not easily fall off, and the good tensile property of the textile fabric improves the overall stability of the bioactive filler. The prepared ammonia oxidizing bacteria fixed-type bioactive fillers not only solve the problems that the ammonia oxidizing bacteria are difficult in advantage establishment, easy to lose and the like, but also improve the processing ability of a reactor, and have a good application prospect.

The invention discloses a pressure-bearing integral metallurgy sewage purifying treatment device comprising a sealed pressure-bearing shell, wherein the shell is provided with at least two settling chambers, at least two flocculation reaction chambers and a hydraulic circulating clarifying chamber, and the settling chambers and the flocculation reaction chambers are staggered from bottom to top and are communicated in sequence; the lower end of each settling chamber is respectively connected with a blow-off pipe which extends to the outside of the shell; and the upper part and lower part of the shell are respectively provided with a discharging pipe and a water inlet pipe which extend to the outside of the shell. The treatment device can ensure stable purification effect and strong water impact resistance, has less possibility of being blocked, and is simple and convenient for maintenance; and the fully-sealed pressure-bearing integral metallurgy sewage purifying treatment device can fully utilize the residual pressure of coming water, and water produced by the device can be sent to a pressure filter or a cooling tower with no need of a secondary pressurizing pump station.

The invention discloses a mechanical internal circulation jet-flow anaerobic reactor and a wastewater treatment method thereof, and belongs to the technical field of biological sewage treatment. The mechanical internal circulation jet-flow anaerobic reactor comprises a reactor tank body, a multi-phase separator, a water outlet weir and an internal circulation jet-flow device, wherein the internal circulation jet-flow device comprises an upper part and a lower part; the upper part comprises a jet-flow hole, a diffusion hole, a flow guide pipe and a flow stabilization hole; the lower part comprises a motor, a rotary shaft and high-speed blades. The wastewater treatment method comprises the following steps: forming a fluidized bed layer, forming a suspended bed layer, separating a separation region and discharging water from the water outlet weir. Due to the use of the internal circulation jet-flow device, the difficult problems of low treatment load, instable effect and relatively narrow application range in the treatment process of an existing conventional anaerobic reactor are solved; the mechanical internal circulation jet-flow anaerobic reactor has the advantages of high treatment load, good water impact resistance, high concentration of biological toxicity resistance matters, quick starting and the like.

The invention discloses an inclination restoration method of upright channel slope protection. A plurality of ecological earthen bowls for planting emerged plants are fixed in a river from the bank sides to the midline position of a channel. The ecological earthen bowls are arranged stepwise so as to form an inclination ecological slope protection, mutually hooked, supported and fixed to the river bottom by ecological stakes or embedded into the upright slope protection by anchor rods, with high stability. Various emerged plants are planted in the ecological earthen bowls, thereby forming an ecological system and ecological landscape that similar natural slope embankments have. The ecological earthen bowls are arranged in the position where rainwater pipes are arranged, and play a role in interception and purification of contaminants in rainwater indirectly. According to the inclination restoration method disclosed by the invention, the shortcomings of land shortage of an upright channel, narrow space, single sectional form, brick-concrete masonry materials and so forth are overcome, and three functions of ecological restoration, sewage interception and water purification as well as landscaping are provided; and the relationship between human beings and the channel is improved fully, and new ideas and technologies are provided for supporting remediation of the upright channel slope protection.

The invention discloses a nuclear-grade water filter filter element filter material and a production method thereof. The nuclear-grade water filter filter element filter material comprises a base material, which is made from micro-glass cellucotton with an alkali metal content larger than 9%, and a non-woven fabric attached onto the upper and lower surfaces of the base material; and the base material and the non-woven fabric are dried and stuck together in waterborne resin after being subjected to negative-pressure suction. The filter precision of the filter material produced through the method is smaller than or equal to 1 [mu]m, the air permeability at 200 Pa is equal to or larger than 36 L / m<2> / sec, and the tensile strength is equal to or larger than 0.2 kN / m; and the nuclear-grade water filter filter element filter material has high water flow impact resistance capability, the strength retention rate after the nuclear-grade water filter filter element filter material is treated by a 50 g / L (50%) sodium hydroxide solution at 23+ / -2 DEG C for 7 days can reach 60% or above, and the requirements of the water quality of a primary loop of a nuclear power plant are met.

The invention provides trentepohlia artificial grass and application thereof on coupling with ammonia nitrogen sewage treatment and carotenoid production. A large trentepohlia plant body is cut into fragment-shaped algal filaments, the fragment-shaped algal filaments are thickened, and then are inoculated into films so as to prepare the trentepohlia artificial grass; and the artificial grass is coupled with ammonia nitrogen sewage treatment and carotenoid production. Compared with the prior art, the trentepohlia artificial grass has the advantages that a selected trentepohlia film-forming method is simple, film-forming efficiency is high, and after being formed, the trentepohlia artificial grass is attached firmly, has quite high water impact resistance, and can grow in a water submergingor semi-submerging state. The algal filaments in the prepared trentepohlia artificial grass are in the shape of a stereo net which is upright mainly, the thickness reaches 10 mm, and the specific surface area of a whole biological film is large. The selected trentepohlia has efficient removal rate on ammonium nitrogen, has ability of resisting high-concentration ammonium nitrogen and a strong acidenvironment, and even can directly treat livestock and poultry breeding sewage and sanitary sewage. Steps are simple, and the trentepohlia artificial grass is convenient to operate and high in practicality.

The invention discloses anaerobic ammonia oxidizing bacteria fixed-type bioactive fillers, and preparation and an application thereof, and belongs to the technical field of water treatment. Fillers are each composed of a carrier and an embedding body and are fixed on a prefabricated frame to form the fixed-type bioactive fillers; each carrier is prepared by sewing multiple layers of polyvinyl alcohol non-woven fabrics and one layer of textile fabric; the embedding bodies are formed by boric acid cross-linking immobilization of an embedding liquid; the embedding liquid is formed by mixing an anaerobic ammonia oxidizing bacteria suspension and a polyvinyl alcohol solution. Each carrier is soaked in the embedding liquid, through boric acid secondary cross-linking, the non-woven fabrics and the bacteria embedding body are firmly bound together, the embedding body penetrates through textile fabric meshes to form a riveting fixing structure and does not easily fall off, and the good tensile property of the textile fabric improves the overall stability of the bioactive filler. The prepared bioactive fillers not only solve the problems that anaerobic ammonia oxidizing bacteria are low in concentration, are easy to lose and the like, but also have the advantages of strong strength, good stability, strong water flow impact resistant ability and the like, shorten the reaction start-up time, and have broad application prospects.

The invention relates to a three-section all-in-one rectangular anaeroic digestor comprising a distribution region, a reaction region and a three-phase separation region, wherein the cross section of the digestor is rectangular and respectively provided with the distribution region, the reaction region and the three-phase separation region from bottom to top, and the distribution region, the reaction region and the three-phase separation region are integrated; the distribution region comprises a bottom plate, the lower part of a side wall and a feeding pipe, wherein the upper surface of the bottom plate is connected with the side wall lower part; the reaction region is defined by the middle of the side wall, two sides inside the reaction region are oppositely provided with a first baffle plate and a second baffle plate from bottom to top, the reaction region is divided into three region chambers, and a gas collecting chamber is arranged at the upper part of each region chamber; and the three-phase separation region comprises the upper part of the side wall, an overflow veir, a three-phase separation baffle, a restricted baffle and a top cover, wherein the top cover is respectively provided with three gas collecting holes corresponding to the three gas collecting chambers, and the gas collecting holes are used for collecting the generated biogenic gas. The three-section all-in-one rectangular anaeroic digestor is compact in structure, convenient for manufacturing, easy to realize industrialization, uniform in distribution, not easy to block, high in treatment efficiency, good in liquid-solid mass transfer effect, high in organic load impact resistance and also capable of fractionally collecting the biogenic gas.