Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

33 results about "Endosulfan" patented technology

Endosulfan is an off-patent organochlorine insecticide and acaricide that is being phased out globally. The two isomers, endo and exo, are known popularly as I and II. Endosulfan sulfate is a product of oxidation containing one extra O atom attached to the S atom. Endosulfan became a highly controversial agrichemical due to its acute toxicity, potential for bioaccumulation, and role as an endocrine disruptor. Because of its threats to human health and the environment, a global ban on the manufacture and use of endosulfan was negotiated under the Stockholm Convention in April 2011. The ban has taken effect in mid-2012, with certain uses exempted for five additional years. More than 80 countries, including the European Union, Australia, New Zealand, several West African nations, the United States, Brazil, and Canada had already banned it or announced phase-outs by the time the Stockholm Convention ban was agreed upon. It is still used extensively in India, China despite laws banning it, and few other countries. It is produced by Makhteshim Agan and several manufacturers in India and China. Although, the Supreme Court had, by an order dated 13.05.2011, put a ban on the production and sale of endosulfan in India till further orders.

Endosulfan degradation bacterium JBW4

The invention provides an endosulfan degradation bacterium JBW4 (Alcaligenes faecalis.JBW4), which was preserved in the China center for type culture collection (CCTCC) on May 24th, 2012 with the preservation serial number being CCTCC No:M2012181. The endosulfan degradation bacterium JBW4 is prepared to be bacteria suspending liquid, and the bacteria suspending liquid is applied to the degradation of endosulfan in the soil in a mode that the bacteria suspending liquid is directly added into the soil, so that endosulfan remained on objects of water bodies, soils and the like can be safely, effectively and quickly degraded, genetic toxicity and ecotoxicity of the endosulfan to the environment are reduced and the actions of restoring the soil polluted by the endosulfan and protecting the ecological environment are exerted. The bactericide of the strain is simple in preparation process, low in cost and high in efficiency, and has good application prospect; and moreover, the secondary pollution is avoided.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Fertilizer special for increasing yield of water melons

The invention relates to a fertilizer special for increasing the yield of water melons. The fertilizer comprises the following components in percentage by weight: 18 to 37 percent of colza cake, 8 to 16 percent of dry duck feces, 16 to 25 percent of dry human excrement, 10 to 16 percent of sorghum powder, 6 to 10 percent of water melon production promoter, 4 to 9 percent of endosulfan, 4 to 9 percent of monopotassium phosphate, 1 to 2 percent of calcium chloride, 0.5 to 1 percent of dipterex, 1 to 2 percent of sand, 1 to 2 percent of oxygen-increasing powder and 0.5 to 1 percent of carbendazim. The fertilizer is prepared by the following steps of: mixing the first nine raw materials in proportion; putting the mixture into a stirrer and stirring the mixture for 80 minutes; taking the stirred mixture out; grinding the stirred mixture in a grinder into particles of 140 meshes; taking the particles out, adding the carbendazim, the dipterex and the endosulfan into the particles and uniformly stirring the mixture; putting the mixture into the stirrer, stirring the mixture for 30 minutes and taking the stirred mixture out; and molding the stirred mixture into a cylindrical fertilizer column which is special for increasing the yield of the water melons and has a weight of 300 grams, a height of 12 centimeters and a width of 10 centimeters by using a molding machine. The molded fertilizer column special for increasing the yield is required to be compact and not easy to be broken when taken by hands.
Owner:闫家良

Method for degrading endosulfan through mechano-chemical process

The invention discloses a method for degrading endosulfan through a mechano-chemical process. The method comprises the steps that endosulfan or endosulfan-containing matter and a grinding agent are added into a ball mill together to be subjected to ball milling for 15 min or longer, so that endosulfan degrading is realized, specifically, the rotation speed of the ball mill is 400-600 rpm, the material ratio is 15-20:1, the ratio of grinding media to a material is 15-20:1, the ball mill rotates reversely immediately after rotating for 30 min, and the operations are repeatedly carried out. According to the method, CaO and MgO are adopted independently, and the endosulfan degrading efficiency is 96% or above due to ball milling for half an hour; and ball milling is carried out for 15 min under the conditions that the material ratio is 15-20:1, the ratio of the grinding media to the material is 15-20:1 and the rotation speed is 500 rpm, the degrading rate is 70%, and the content of endosulfan in soil is reduced from original 3451.042 mg/kg to 1043 mg/kg. After endosulfan is subjected to ball milling for 120 min, the content of endosulfan in soil is reduced to 430.6 mg/kg, the soil degrading rate is 85.62%, and a good practical application effect is achieved.
Owner:NANJING FORESTRY UNIV

Filter medium for removing endosulfan from water as well as filter element and preparation method of filter medium

The invention provides a preparation method of a filter medium for removing endosulfan from drinking water. The preparation method is characterized by comprising the following steps: (a) mixing ultra-high molecular weight polyethylene powder, activated carbon powder, zeolite molecular sieve powder, attapulgite powder and a pore-forming agent to obtain a mixture, wherein the ultra-high molecular weight polyethylene powder, the activated carbon powder, the zeolite molecular sieve powder, the attapulgite powder and the pore-forming agent are mixed in a weight ratio of (100-300) to (50-100) to (100-150) to (100-150) to (50-100); and (b) pressing, sintering and cooling the mixture obtained in step (a) in a mould. According to the preparation method, the filter medium prepared under synergistic reaction of the raw materials has a high removal rate to endosulfan in water, the method is simple, the filter medium is suitable for drinking water polluted by endosulfan so as to avoid harms of elemental endosulfan to a human body. Through the detection, the removal rate of the filter medium to endosulfan in drinking water is higher than 99.0%.
Owner:CIXI TIANQUAN ELECTRICAL APPLIANCE TECH

Method for determining endosulfan in feed by gas chromatography-tandem mass spectrometry

The invention discloses a method for determining endosulfan in a feed by gas chromatography-tandem mass spectrometry. The method comprises the following steps of pretreating a sample, and detecting; weighing a certain amount of sample, extracting the endosulfan in the sample by using an organic solvent (chromatographic pure acetonitrile) as an extracting agent, concentrating by a nitrogen blowinginstrument, purifying the concentrated liquid by a Florisil diatomite SPE (solid-phase extraction) column, and using the gas chromatography-tandem mass spectrometry to perform qualitative and quantitative treatment. The method has the advantages that the organic solvent (chromatographic pure acetonitrile) is used as the extracting agent, and the sample is concentrated, and purified by the Florisildiatomite SPE column, so that the pretreatment is simple and convenient, and the consumption time is short; the gas chromatography-tandem mass spectrometry adopts a MRM (multiple reaction monitoring)mode to determine, so that the sensitivity and precision are high, and the qualitative and quantitative treatment is accurate; the universality is strong, the method is suitable for the feed sampleswith different proportional ratios, and the requirement of quickly separating and detecting the endosulfan in the feed sample can be met.
Owner:淮安出入境检验检疫局综合技术服务中心

A kind of method adopting mechanochemical method to degrade endosulfan

The invention discloses a method for degrading endosulfan through a mechano-chemical process. The method comprises the steps that endosulfan or endosulfan-containing matter and a grinding agent are added into a ball mill together to be subjected to ball milling for 15 min or longer, so that endosulfan degrading is realized, specifically, the rotation speed of the ball mill is 400-600 rpm, the material ratio is 15-20:1, the ratio of grinding media to a material is 15-20:1, the ball mill rotates reversely immediately after rotating for 30 min, and the operations are repeatedly carried out. According to the method, CaO and MgO are adopted independently, and the endosulfan degrading efficiency is 96% or above due to ball milling for half an hour; and ball milling is carried out for 15 min under the conditions that the material ratio is 15-20:1, the ratio of the grinding media to the material is 15-20:1 and the rotation speed is 500 rpm, the degrading rate is 70%, and the content of endosulfan in soil is reduced from original 3451.042 mg / kg to 1043 mg / kg. After endosulfan is subjected to ball milling for 120 min, the content of endosulfan in soil is reduced to 430.6 mg / kg, the soil degrading rate is 85.62%, and a good practical application effect is achieved.
Owner:NANJING FORESTRY UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products