33 results about "Seston" patented technology

The disclosed water-drop aeration biopretreatment-ultrafiltration combined purification technique for drinking water comprises: first, building the multistage water-drop aeration biopretreatment device; then, pumping the raw water once to remove the most ammonia nitrogen by cascade water-drop oxygenation and biological contact oxidation pretreatment and convert the micro dissolved organic into microbe cell; filtering by the protective porous ceramic-aggregate pond; followingly, leading into the ultrafiltration membrane module to reduce the micro organic, ammonia nitrogen, particulate matter, most seston, colloid, and bacteria till meeting the drinking water quality standard. This invention belongs to green technique without coagulant or chlorine, reduces cost and land area, and has wide application for small-scale drinking water treatment.

The invention relates to a distributed sewage biological treatment process in a rural area. The distributed sewage biological treatment process consists of a pretreatment zone, a biological purifying zone and a culture zone, wherein the pretreatment zone comprises a hydrolysis acidification pool and a cloth media filter; the biological purifying zone comprises an artificial wetland and a fungus-algae pond; and the culture zone is a fish pond. The hydrolysis acidification pool is used for degrading particulate and soluble organic matters in the sewage; the cloth media filter is used for removing suspended particulate matters; pretreated sewage enters the artificial wetland and the fungus-algae pond for further removing various organic matters and contaminating materials such as nitrogen and phosphor and simultaneously generating a large amount of aquatic plants and algae; the harvested aquatic plants can be used as feed which is provided for fishes; and the algae and the treated sewage directly enter the fish pond. According to the distributed sewage biological treatment process disclosed by the invention, the recycling of the contaminating materials is realized, the problem that the pollution of the distributed sewage in the rural area is effectively solved; and the distributed sewage biological treatment process has the advantages of strong flexibility, high removal rate of the contaminating materials, low operation and maintenance cost and the like.

An oil-water separator for the cabin bottom to separate micro floating substance is composed of the primary treating unit for gravitationally separating oil out and removing the micro floating substance (mud and sand particles) by sand filter, and the secondary treating unit for gravitationally separating out the residual oil, collecting them by collector, and discharging the treated water.

A method of minimizing contamination of optical components of a laser resonator is disclosed. The resonator components are located in an enclosure, which may contain contaminants including water vapor and organic favor released by the optical components, mounts of the optical components, or the enclosure itself. The enclosure may also contain suspended particulate matter. In order to reduce the level of these contaminants, a purging system extracts gas from the enclosure and passes the gas through a desiccant, an organic vapor trapping material, and a particulate matter filter then returns the extracted gas to the enclosure. The purging system is particularly useful for ultrafast lasers and ultraviolet lasers where the power of the laser radiation increases the probability of destabilizing reactions between laser radiation and contaminants.

The invention provides a device and a method for measuring the concentration of marine suspended particles based on digital image processing. According to the invention, based on the principle that seawater and marine suspended particles have different reflectivities to light, by using a digital image processing technology, a set of ocean suspended particulate matter concentration measuring devicebased on a digital image processing technology and an ocean suspended particulate matter image feature value algorithm used for representing the ocean suspended particulate matter concentration are established, and the ocean suspended particulate matter image feature value is extracted through the algorithm. The marine suspended particle image feature value can realize inversion of the real concentration of marine suspended particles. According to the method, a digital image processing technology is tried to be applied to measurement of the concentration of the marine suspended particulate matters, the measurement precision only depends on the shooting precision of a measurement device and the improvement of a subsequent algorithm, and the defect that the measurement precision is easily influenced by the particle size and particle size distribution of the marine suspended particulate matters can be overcome; meanwhile, the method has the advantages of intuition, continuous observation, simplicity and convenience in operation and the like, and has a wide application prospect in ocean investigation.

The invention discloses a method for separating particulate matters and plankton from a water body efficiently and quickly. According to the method, the plankton and suspended particulate matter samples are successfully subjected to a separating treatment operation, so that zooplankton, phytoplankton and the suspended particulate matters are continuously and effectively separated from the water body of a river in sequence. The method disclosed by the invention has the advantages of wide application range, simple operation, quickness and the like, and provides an important technical means for research on environmental ecology of a large-scale open water body.

The present invention provides an air filtering system and method that continuously monitors and samples the air to measure the amount or concentration of suspended particulate matter in an area. Based on the information collected the air filtering system determines the need for and the amount and volume of air filtering that is required. In this way, the air filtering system only operates at the needed capacity to filter the air, and dynamically responds in real time to the fluctuating air contamination levels that occur during various work processes within the space, room or building.

The present invention provides a cleanroom for storing glass substrates, and which comprises an exhaust is disposed on a bottom floor of the cleanroom. A first filtering device is arranged on a ceiling of the cleanroom to provide purified airflow to the cleanroom. A second filtering device is arranged on the bottom floor of the cleanroom jointly to create a vertical airflow with the first filtering device so as to reduce the turbulence within the cleanroom. The present invention can readily resolve the prior art issue in which the airborne particles stirred by turbulence within the cleanroom cannot be effectively eliminated.

The invention discloses a fish, vegetable and shellfish symbiotic engineering circulating water double-layer culture tank, and belongs to the technical field of aquaculture equipment. The fish, vegetable and shellfish symbiotic engineering circulating water double-layer culture tank comprises a tank body, a floating bed, a bottom fish screen and other structures, the floating bed is located at the top of the water outlet end of the tank body and provided with a plurality of planting holes, aquatic plants are planted in the floating bed, the interior of the tank body is divided into two parts which are deep in the upper portion and shallow in the lower portion through the bottom fish screen, fishes are cultured in the upper tank body, and filter-feeding shellfishes are put in the lower tank body. Through the root systems of the aquatic plants, COD, nitrogen, phosphorus and other nutritive salts in aquaculture water can be effectively absorbed, sedimentation of suspended particulate matter in the water is promoted, meanwhile, granular organic matter is removed through the filter feeding effect of the bottom shellfishes, the problem that an existing aquaculture water tank is low in waste collection efficiency is solved, the yield of the shellfishes and the aquatic plants can be increased, and meanwhile, the landscape aesthetics value is realized.

The invention provides a purification treatment method and a purification treatment system for marine fish culture tail water, which belong to the technical field of wastewater treatment. The method comprises the following steps of S1, injecting culture tail water into a caulerpa lentillifera culture pond, S2, putting caulerpa lentillifera with a certain density according to the eutrophication process and the content of suspended particulate matters, S3, aerating at the bottom of the culture pond, and S4, after purification is carried out for a set time, acquiring the content of each water quality parameter of the caulerpa lentillifera culture pond, and when the water quality discharge standard is met, discharging the purified culture tail water. The method has the beneficial effects that nutrient substances such as N and P in seawater can be efficiently utilized, greenhouse gas carbon dioxide is absorbed in a large capacity, sufficient oxygen is released, pollutants are efficiently removed, and meanwhile, the environment of a culture water body is remarkably improved; the culture wastewater is continuously used for culturing the sea grapes, so that the yield of the sea grapes can be further increased, and economic benefits are improved.

The invention belongs to the technical field of water treatment, and relates to a deep purification pond chain treatment process for dredging tail water. The process adopts a first-stage sedimentationpond, a second-stage sedimentation pond, a muddy water pond, a clear water pond and an ecological landscape pond. The ponds of the process are connected in an overflow weir mode. When the distance between ponds is large, the ponds are connected through pipelines, pipeline silting prevention measures are adopted, when the concentration of suspended particles in tail water is smaller than or equalto 200 mg/L, the second-stage sedimentation pond is not arranged, effluent of the first-stage sedimentation pond directly enters the muddy water pond, and aquatic plants are planted in the ecologicallandscape pond. The provided process has the advantages that no power facility is needed; the process is energy-saving and environmentally-friendly; organic matters, N, P and other pollutants in waterare adsorbed and degraded step by step through the combined action of matrixes, plants, and microorganisms in the ponds, an ecological landscape is created, and tail water is deeply purified.

The invention relates to the relative technical field of lake purification treatment and discloses a treatment device for collecting and sorting seston in a lake. The treatment device comprises a collecting treatment device, wherein five corner protecting devices are inserted in an equally spaced manner onto the outer surface of the collecting treatment device; the outer sides of the corner protecting devices pass through a positioning protecting bracket, and the middle of one side of the protecting bracket is welded to the outer surface of the collecting treatment device through a bearing support; an interior angle positioning supporting rack is welded to the inner side of the collecting treatment device, and a hexagonal side baffle device is inserted into the middle of the inner cavity of the collecting treatment device; and a through-flow device is inserted into the middle of the cavity of the hexagonal side baffle device. According to the treatment device for collecting and sortingseston in the lake provided by the invention, as the collecting treatment device is placed in the lake, the treatment device can collect seston in the lake by means of a counter-acting force of a flow guide pump by combined use of the through-flow device, a dropping device and a receiving device which are arranged in the treatment device. Meanwhile, in the collecting process, the treatment deviceseparate the collected seston.

A water body suspended particulate matter observation system based on a movable platform comprises the movable platform capable of moving in an ocean water body and a particulate matter sensor carried on the movable platform, and a monitoring and data management system connected with the particulate matter sensor is arranged on the movable platform. The movable platform moves in an ocean water body according to a preset or real-time controlled moving path, the particulate matter sensor works under monitoring and control of the monitoring and data management system in the process of moving in the ocean water body along with the movable platform, observes suspended particulate matters in the ocean water body in situ, automatically obtains the long-time sequence water body suspended particulate matter observation data of the large-area water area, so that the intelligent identification, monitoring and tracking of the water body suspended particulate matters can be realized. The ocean in-situ observation data collection efficiency is greatly improved, and meanwhile the system has the remarkable advantages of being good in maneuverability, high in detection capacity, small in observation error, wide in observation position range and the like.

The invention discloses an apparatus for removing particles or impurities from air. The apparatus includes a water tank, a casing, a top cover, a sieve plate, a water pump and a fan. The water pump draws water from the water tank through a water pipe and drains water through a water separator. The water drained from the water separator falls on the sieve plate and then forms a water layer on the sieve plate, and the water flows down along the periphery of the sieve plate to form a water screen. The fan guides the air entering a chamber through a first slit to an air outlet, thereby forming an air flow. The air flow entering the chamber through the first slit passes through the water screen, reaches a dispersion area below the sieve plate, passes through the through holes in the sieve plate, breaks the water layer covering the sieve plate again, and achieves the upper part of the sieve plate so as to form clean air. The purification principle of an air purifier is revolutionarily changed, and a totally new method for removing particles or impurities from air is adopted, and suspended particles or impurities in the air are effectively removed. The invention further discloses a method for removing particles or impurities from air.

The invention aims to provide an integrated processing device of aquatic product unfreezing wastewater, and the integrated processing device comprises a water inlet, a grille, a sedimentation tank, a water outlet, a pipeline, a sewage tank, a sludge pipeline, a membrane unit, a micro aeration unit, a sludge pump, an aeration pipeline, an aeration pump, a water pump, a water outlet pool and a second pipeline. The device adopts a special PVDF (polyvinylidene fluoride) ultrafiltration membrane as a core and an immersion-type operation mode, and combines a micro aeration technology for purification processing, more than 99% of suspended particle matters and microorganisms in water can be removed, meanwhile micro pollution mediums in seawater can be removed, and seawater post-processing chromaticity and suspended solids both can meet discharge requirements. The device combines microbial biochemical processing and membrane processing requirements, is reasonable in design, small in land occupation area and large in processing capacity, and can be used in processing of the aquatic product unfreezing wastewater.

There is provided a method for storing (meth)acrylic acid or (meth)acrylic esters in a storage tank for receiving or discharging the (meth)acrylic acid or (meth)acrylic esters, which is capable of storing the (meth)acrylic acid or (meth)acrylic esters for a long period of time.

According to the method of the present invention, upon storing the (meth)acrylic acid or (meth)acrylic esters in the storage tank for receiving or discharging the (meth)acrylic acid or (meth)acrylic esters, a concentration of suspended particulate matters contained in a gas phase portion of the storage tank is controlled to not more than 0.01 mg/m³.