56results about How to "To achieve the purpose of removal" patented technology

A device for wiping off carbon dioxide in water body of fishing industry, comprising a body, the upper part of which is provided with an annular water spray device connected with a water inlet; the centre of lower part inside the body is provided with an aerating apparatus connected with a gas inlet; the middle part inside the body is provided with a filler cavity; the top of the body is provided with a gas-water separator and an exhaust mask component; one side of the lower part of the body is provided with an outlet for clean water; and the bottom of the body is provided with an exhaust pipe valve for depositing sewage. The water to be treated in a fish pond or a fish container is transported to the annular water spray device through the water inlet; water flow uniformly sprays to form multilevel mist water curtain along the horizontal diameter of the annular water spray device and sprinkles down; meanwhile air filtered is transported into the aerating apparatus through the gas inlet to release the micro bubbles uniformly; top-to-bottom water flow closely contacts with the gas flow moving in the opposite direction and realizes gas exchange; and a secondary action is carried out between ascending gas flow and water curtain, and carbon dioxide is discharged outside through a vent hole on the exhaust mask, thus realizing the purpose of the invention.

The invention discloses an electrolytic filtering / squeezing integrated sludge dewatering machine which comprises a primary squeezing and filtering region, an electrolytic filtering region, an electrolytic squeezing region and an external direct current power source, wherein the primary squeezing and filtering region, the electrolytic filtering region and the electrolytic squeezing region are sequentially arranged with one anther by taking a frame as a carrier. The sludge fallen from a hopper is primarily squeezed and filtered to remove the free water contained in the sludge. A driven upper filter strip and a driven lower filter strip are respectively and externally leaned against an upper squeezing strip and a lower squeezing strip connected the two poles of a direct current power source,so that the sludge clamped between the upper squeezing strip and the lower squeezing strip is electrolyzed, and the interstitial water and the cellular water in the sludge flow to the negative pole when the electric charge flows, i.e. the electrophoresis. The incompletely-dried sludge is carried into the electrolytic squeezing region and is forced under the condition that the sludge is stilled electrolyzed to accelerate the dewatering. By sequentially reducing the diameters of a plurality of the roll shafts and by adopting an installation technology measure that the adjoining roll shafts are installed in a misplaced way up and down, the machine can dewater by sequentially forcing, so that the dryness of a sludge cake is improved. The machine is particularly suitable for treating the biochemical active sludge precipitated by the urban domestic sewage or the industrial sewage.

The invention relates to filler used for constructed wetland water treatment and a preparation method of the filler. The invention aims at providing a novel constructed wetland filler which is capable of realizing slowly releasing oxygen and reinforcing nitrogen and phosphorus removal and a preparation method of the filler. The filler used for constructed wetland water treatment is volcanic cinder particles which are loaded with a rare-earth nitrogen and phosphorus adsorbent and a slow-release oxygen material, and have particle diameters of 5-15mm. The filler can be used for increasing the sewage purifying capacity of the constructed wetland. And the preparation method has the characteristics of simple process, sufficient raw materials, low cost, and the like.

The invention discloses a method for synergistically controlling the algae of silver carp, bighead carp, grass carp, Trichophyton algae and Phyllostachys vulgaris, which relates to a water treatment method. The invention solves the problems that the transparency of the water body decreases and the water quality deteriorates due to the excessive growth of algae in the water. The steps of the invention for controlling algae are as follows: stocking silver carp, bighead carp and grass carp in the eutrophic water body and constructing a floating cage; the nylon wire mesh in the floating cage is attached and grown with Phytolithiasis, and the floating cage is grown with transparent fleas . The method of the invention is easy to operate, has high efficiency, is economical, quick, and easy to manage, and can be popularized and applied on a large scale. The phosphorus removal rate of the invention is 60-66%, the average removal rate of algae is 68-73%, and the average removal rate of chlorophyll a in effluent is 63-66%.

The invention provides a flexible joint thin rib bottom electric corrosion layer removal device, and belongs to the technical field of polishing in machining. The device aims to solve the problem that an electric corrosion layer on a thin rib bottom gap of a flexible joint can not be removed through existing conventional machining, and performance of the flexible joint is affected. A notch groove in a first circular pipe and a notch groove in a second circular pipe on an abrasive stream pouring plug are both communicated with the thin rib bottom gap of the flexible joint. A left port of a piston cylinder assembly is communicated with a tail port of the first circular pipe through a first electromagnetic switch valve, and a right port of the piston cylinder assembly is communicated with a tail port of the second circular pipe through a second electromagnetic switch valve. A stirring head of a stirring assembly is soaked in fluid abrasive machining liquid in a container groove. A reciprocating moving end of a reciprocating mechanism assembly is connected with a piston rod of the piston cylinder assembly. By means of the flexible joint thin rib bottom electric corrosion layer removal device, non-contact machining can be performed on parts, difficult to machine, at the bottom of a blind hole of the flexible joint, and the aim of removing an electric corrosion layer is achieved.

The invention discloses a vertical long pipeline hoisting-type steel wire cleaning-up device and method. The cleaning-up device comprises an electromagnetic loop, an open-leg-type slip, a trash remover body shell, a hoisting steel wire, a cable and a motor. The trash remover body shell comprises an electromagnet, a pore channel located in the trash remover body shell, a nozzle located at the bottom of the trash remover body shell and a combination centralizer arranged on the outer wall of the trash remover body shell. The electromagnet can be connected with the electromagnetic loop or separated from the electromagnetic loop through magnetic force. The pore channel communicates with a water conveying pipe. By adoption of the cleaning-up method, the combination centralizer on the outer end face of the trash remover body shell and forward movable pulleys on the electromagnetic loop are adopted to achieve centered and smooth movement of the device in a construction pipeline, and working efficiency is improved by combining with the grinding effect of a rotating mild steel wire, the cavatition effect of an ultrasonic generator and the injection effect of the nozzle. Solid impurities on the wall face of a vertical long pipeline and the inside of the vertical long pipeline can be effectively removed.

The invention discloses a method for detecting a piwi-interacting ribonucleic acid (piRNA) in gastric juice. The method comprises the following steps of: extracting and neutralizing the gastric juice; releasing the RNA; extracting with chloroform; precipitating with isopropyl alcohol; washing with ethanol; performing reverse transcription of the RNA; detecting with a polymerase chain reaction (PCR); and the like, wherein sodium hydroxide solution is used for liquefying viscous components in the gastric juice to suspend mucoprotein and polysaccharide in the solution and neutralizing the gastric juice in the method; trypsin is added for digestion, so that proteins such as the mucoprotein and the like can be hydrolyzed and cell components in the gastric juice are loosened to bring convenience to centrifugal separation; Trizol solution is added for repeated blowing and beating; the RNA is fully released and is separated from impurities such as the polysaccharide, the mucoprotein and the like, so that the problem of interference of acidity, the polysaccharide, the mucoprotein and the like in the gastric juice on the extraction of the RNA is solved; thus, the interference of the impurities such as the polysaccharide, the mucoprotein and the like in the gastric juice can be eliminated, the piRNA in the gastric juice is effectively extracted, and fluorescence quantitative PCR detection is performed on the extracted piRNA.