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124 results about "Cost of treatment" patented technology

Prostatic hormonal implants treatment of prostate cancer

InactiveUS20030147936A1BiocideOrganic active ingredientsIntermediate riskWhole body
An improved method and products for the primary hormonal treatment of early stage, low and intermediate risk prostate cancers by prostatic implants of androgen suppressive drugs formulated as fused with a lipoid carrier or encapsulated in microcapsules or in Silastic capsules is provided. Such prostatic implants renders a constant slow-release of their contents to the prostate for extended periods by biodegradation and diffusion. It facilitates higher prostatic and lower systemic concentrations of androgen suppressive hormones. Because of their high prostatic and lower systemic concentrations, tumor control is much improved and the their systemic toxicity is minimized. Tumor control after such primary hormonal implant treatment is followed by clinical examinations and the biochemical tumor control is followed by periodic estimations of serum levels of PSA and acid phosphatase. More complex and expensive surgery or radiation therapy for this group of good prognostic early stage prostate cancer is reserved for those patients failing to this primary hormonal treatment. It will preserve potency more than by surgery or radiation therapy. Furthermore, it would reduce the cost of treatment for early stage prostate cancer significantly. Androgen suppressive hormonal implants to the prostate before, during or after lower dose conventional radiation therapy would also facilitate equal or better cure rates of localized prostate cancer as compared to the more complex and toxic higher dose radiation therapy.
Owner:SAHADEVAN VELAYUDHAN

Method for extracting lithium and other alkali metal elements from lepidolite mineral

The invention discloses a high-temperature mineral phase reconstruction method for extracting lithium and other alkali metal elements from lepidolite mineral, comprising the following steps: mixing raw materials, pelletizing, calcining at high temperature, water quenching, ball milling, dissolving out, producing compounds and the like. The invention teaks raw mineral component composition to design target reconstruction mineral and composition to obtain the purpose of optimizing processes, lowering energy consumption and cost of treatment process and efficiently extracting lithium, potassium, rubidium, caesium and the like. Silicon and aluminum in lepidolite can enter anorthite type mineral phase (CaO.Al2O3.2SiO2, (Ca, Na)O. (Al, Si)2O3.2SiO2) and calcium ash quarry phase (CaO.SiO2) after mineral phase reconstruction, and do not dissolve in water and aqueous solution. After mineral phase reconstruction reaction, fluorine in lepidolite enters calcium fluoride mineral phase and does not dissolve in water and aqueous solution. Lithium and other alkali metal elements in lepidolite enter salt (chloride, sulfate) or alkali (hydroxide) phase of lithium and other alkali metal elements after mineral phase reconstruction reaction and can be dissolved in water and aqueous solution.
Owner:CENT SOUTH UNIV

Comprehensive utilization method of wastewater containing phosphorus and fluorine

The invention relates to the field of wastewater comprehensive utilization, and particularly relates to a comprehensive utilization method of wastewater containing phosphorus and fluorine. The comprehensive utilization method comprises the following steps: carrying out twice neutralization on the wastewater containing phosphorus and fluorine, and controlling the final pH value after each time of neutralization; separating calcium fluoride from wastewater according to the solubility product of calcium fluoride and calcium orthophosphate, so as to enable the main ingredients of wastewater to be calcium orthophosphate and silica gel; separating silica gel by centrifugal separation to obtain a waste liquid containing phosphorus; carrying out secondary neutralization on the waste liquid containing phosphorus to enable the pH value to be 4-7; after generating calcium hydrophosphate, carrying out cooling crystallization treatment; separating calcium hydrophosphate to obtain a clear liquid, so as to realize treatment on wastewater containing phosphorus and fluorine. By adopting the comprehensive utilization method, maximal reutilization of the phosphorus fluorine resource is realized, the by-product silica gel is generated, the product additional value is increased, and the cost of treatment on wastewater containing phosphorus and fluorine is reduced.
Owner:GUIZHOU KAILIN GRP CO LTD

Composite catalyst used for industrial wastewater treatment via electrolytic oxidation, and preparation method thereof

The invention discloses a composite catalyst used for industrial wastewater treatment via electrolytic oxidation, and a preparation method thereof, and belongs to the field of waste water treatment via electrolysis. The composite catalyst comprises a catalyst carrier and active components, wherein sulfonated polystyrene resin is used as the catalyst carrier, and metal ions including Fe<2+>, Mn<2+>, Cr<3+>, and Cu<2+> are taken as the active components. According to the preparation method, loading of the active component metal ions on the sulfonated polystyrene resin carrier is realized via ion exchange so as to obtain a catalyst precursor A, a catalyst precursor B, a catalyst precursor C, and a catalyst precursor D; and the catalyst precursors are mixed. The composite catalyst used for industrial wastewater treatment via electrolytic oxidation possesses following advantages: catalytic activity is high; dispersity of the active components is high; sulfuration performance is excellent; carrier true density is low; the composite catalyst possesses corrosion resistance; cost of treatment of waste water, which is difficult for biodegradation, is low; COD treatment efficiency is high; and service life is relatively long. The composite catalyst can be used as a filling material of electrolytic oxidation equipment for electrolytic oxidation of waste water, which is difficult for biodegradation; and waste water COD removal ratio is 75% or more.
Owner:CHINA PETROLEUM & CHEM CORP

Deep-treatment and reusing system and method for industrial standard-meeting externally-discharged wastewater

The invention relates to a deep-treatment and reusing system and method for industrial standard-meeting externally-discharged wastewater, and belongs to the technical field of water treatment. The system comprises an ultrafiltration device, a nanofiltration device, an electroadsorption device and a coagulation/electrocoagulation/enzyme electropolymerization-electrocoagulation device; an ultrafiltration fresh water outlet is successively communicated with the ultrafiltration device and the electroadsorption device; concentrated water of the ultrafiltration device and concentrated water of the nanofiltration device are communicated with the coagulation/electrocoagulation/enzyme electropolymerization-electrocoagulation device. The system can further include a reverse osmosis device; a water inlet of the reverse osmosis device is communicated with a water outlet of the electroadsorption desalting device, and a concentrated water outlet of the reverse osmosis device is communicated with an inlet of the coagulation/electrocoagulation/enzyme electropolymerization-electrocoagulation device. The industrial standard-meeting externally-discharged wastewater can be used for water supplementary in industrial circulating water and circulating cooling water after being treated by the system, and can also be further used for boiler water feeding after reverse osmosis treatment. The system removes various pollutants in the wastewater to a largest extent, and lower the cost of treatment.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI

Bioremediation of nitrate contaminated groundwater

The invention disclosed relates to a method and apparatus for the denitrification of groundwater in situ in an aquifer under substantially anaerobic conditions, the method comprising(a) providing a network, including an extraction well for removal of groundwater from the aquifer and a plurality of injection wells for returning groundwater to the aquifer, the injection wells being arranged in a line substantially perpendicular to the direction of groundwater flow, the extraction well being located downstream or upstream of the line of injection wells, and the spacing of the wells and the number of injection wells being determined by the mathematical relationshipwhere J is the cost of treatment, CP and CI are the costs of extraction and injection wells, respectively; n is the number of injection wells, and W is the distance across the protected area, and wherein the water stream is evenly distributed between injection wells, according to the relationship:where F is the water flow rate (e-extraction well, i-injection well) and n is the number of injection wells,(b) removing groundwater from the aquifer by the extraction well,(c) adding a carbon source to the groundwater in a controlled manner,(d) returning the carbon source amended groundwater to the aquifer by the injection wells in even distribution, the water flow rate being controlled, and(e) monitoring the nitrate concentration of the groundwater removed from the extraction well, a decrease in nitrate concentration being indicative of denitrification.
Owner:NAT RES COUNCIL OF CANADA

Tumor-targeted tnf-related apoptosis-inducing ligand's variant and the application thereof

The invention belongs to the field of genetic engineering and biotechnology, and specifically discloses a design, preparation and pharmic application of a tumor-targeted TNF-related apoptosis-inducing ligand's variant. The tumor-targeted TNF-related apoptosis-inducing ligand's variant is generated by a fused protein which is consisted of the ligand of CD13, the connecting peptide and TNF-related apoptosis-inducing ligand's variant, and which is by the construction of coding gene of the variant according to the technology of genetic engineering and clone, soluble recombinant expression and ordinary separation and purification. The variant, produced by the method of preparation of the tumor-targeted TNF-related apoptosis-inducing ligand's variant, has favorable tumor-targeting characteristics and the significant enhancement of the anti-tumor effect. It is possible to reducing the required dosage of protein to the treatment effect, increasing the bioavailability, reducing the cost of treatment and overcome the potential toxic effects of the TNF-realated apoptosis-inducing ligand. Moreover, the preparation method of the tumor targeted TNF-related apoptosis-inducing ligand's variant of the present invention provides a method for producing the variant of soluble expression and high concern of polymer forms and a process of separation and purification thereof.
Owner:JIANGSU TARGET BIOMEDICINE RES INST +1
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