| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 06/18/2008 | CN101200335A Comprehensive recover method of copper-vanadium-containing wastewater |
| 06/18/2008 | CN101200334A Treatment method for molybdenum-containing acid wastewater |
| 06/18/2008 | CN101200333A Method for treating oil field waste sludge |
| 06/18/2008 | CN101200324A Arsenic removal technology without secondary pollution and outfit |
| 06/18/2008 | CN101200323A Outfit for eliminating water overproof fluorine content and method therefor |
| 06/18/2008 | CN101200104A Recycling method of abandoned PVC with complex |
| 06/18/2008 | CN100395201C Treatment reuse technique for paper-making white-water |
| 06/18/2008 | CN100395200C Preparation method of nano filtration drinking water based on seconddary membrane filtering technology |
| 06/17/2008 | US7387727 Contaminated liquid filtration system vehicle |
| 06/17/2008 | US7387210 Filter cartridge and manifold for a water purification system |
| 06/12/2008 | WO2008067723A1 Method and device for treating waste water congtaining fluorine by using limestone |
| 06/12/2008 | US20080135491 Forming a magnetic floc by mixing magnetic seed and a flocculant with the water, driving a first rotary magnetic separator, collecting and removing the magnetic floc from the water, separating the magnetic seed from the magnetic floc, recycling the magnetic seed |
| 06/12/2008 | US20080135478 Method for Treating Wastewater or Produced Water |
| 06/11/2008 | CN201071334Y Oil water separation device for processing oil-contaminated water |
| 06/11/2008 | CN201071333Y Device for processing coating wastewater with coagulation reaction |
| 06/11/2008 | CN201071332Y Equipment for processing and recycling PVC anticentripetal mother solution |
| 06/11/2008 | CN101198557A Procedure for the treatment of purines and resulting product |
| 06/11/2008 | CN101198390A Spool valve manifold interconnect for a filter system |
| 06/11/2008 | CN101196011A Zero discharge and recycling method and device for sanitary sewage process |
| 06/11/2008 | CN101196009A Minitype rain water pot collecting device |
| 06/11/2008 | CN101195513A Energy-saving process for treating high ammonia nitrogen waste water |
| 06/11/2008 | CN101195512A Energy-saving method for processing leachate of middle-aged or old refuse landfill |
| 06/11/2008 | CN101195511A Method for processing, using and formulating fluorine containing wastewater of naluminum fluoride industry |
| 06/11/2008 | CN101195510A Method for processing methyl dichloride production wastewater |
| 06/11/2008 | CN101195509A High concentration organic wastewater processing system |
| 06/11/2008 | CN101195081A Method and apparatus for preventing scaling in electrodeionization units |
| 06/11/2008 | CN100393643C Processing method of collecting and displacing oil-field sewage and detritus sewage |
| 06/11/2008 | CN100393642C Sewage recorery treatment system |
| 06/11/2008 | CN100393641C Closed circuit processing technique for chromium-containing wastewater |
| 06/11/2008 | CN100393632C Method of liquid detoxification and apparatus therefor |
| 06/11/2008 | CN100393396C Filtration unit, installation method for a filtration unit and filtration apparatus |
| 06/10/2008 | US7385357 Inductively coupled ballast circuit |
| 06/10/2008 | US7384565 Method for chlorite removal |
| 06/10/2008 | US7384548 Manually controlled skimming of industrial oil contaminants |
| 06/05/2008 | WO2008067246A2 Water treatment using de-supersaturation |
| 06/05/2008 | WO2008064460A1 Removal of contaminants from a waste stream through production and utilization of oxyhydrogen gas |
| 06/05/2008 | US20080128360 Contacting with catalyst to decompose dissolved hydrogen peroxide prior to ion exchanging; simple, low cost protective pretreatment; reduced maintenance |
| 06/05/2008 | US20080128356 Pretreatment with active oxygen, photochemical oxidation and deoxidation, ceramic membrane ultrafilteration and backflushing |
| 06/05/2008 | US20080128338 Adsorption system |
| 06/05/2008 | CA2671186A1 Removal of contaminants from a waste stream through production and utilization of oxyhydrogen gas |
| 06/04/2008 | EP1926688A1 Modular water treatment unit |
| 06/04/2008 | CN201068584Y Maintenance-free water-saving tank |
| 06/04/2008 | CN201068583Y Secondary water saving device for household |
| 06/04/2008 | CN201068448Y System for producing alkane from hydrogen generation residual solution of fermented organism and after-sterilization circulated utilization system |
| 06/04/2008 | CN201068425Y Water purifying and mineralizing device |
| 06/04/2008 | CN201068424Y Domestic water purifier with ultraviolet radiation sterilization and multi-stage filtration |
| 06/04/2008 | CN101190822A Technique for treating sewage of high well and deep drilling well |
| 06/04/2008 | CN101190821A Method for treating Fischer-Tropsch synthesis reaction water |
| 06/04/2008 | CN101190809A Method for treating ammonia nitrogen waste water |
| 06/04/2008 | CN100391876C Method for treating wastewater of terephthalic acid by using aerating bio filter |
| 06/04/2008 | CN100391875C Integral sewage treating combined apparatus |
| 06/04/2008 | CN100391874C Treatment technology of p-aminotoluene waste water |
| 06/04/2008 | CN100391873C Waste water treatment method and system of cold rolling emulsion |
| 06/04/2008 | CN100391872C Method of reducing the pollution load of purines |
| 06/04/2008 | CN100391871C Anoxybiotic/aerobic two-section internal electrolysis organic waste water treating method |
| 06/04/2008 | CN100391870C Circulation utilizing technology for waste water and water dreg from potato starch production process |
| 06/04/2008 | CN100391862C Recovery of alcohol diisopropylamine from waste liquid of pharmaceutical industry |
| 05/29/2008 | WO2008061435A1 A two-stage aluminum fluoride recycling system and process of tail gas condensate from the aluminum fluoride producing system |
| 05/29/2008 | US20080121585 Water treatment using de-supersaturation |
| 05/29/2008 | DE102006055445A1 Preparation and precipitation of magnesium-ammonium-phosphate from turbid/filtrate water of e.g. sludges, comprises extracting ammonia from the turbid water and rinsing the anaerobic sludge with residue solution of struvite |
| 05/28/2008 | EP1924717A2 Methods for enhancing the dewaterability of sludge with alpha-amylase treatment |
| 05/28/2008 | EP1924531A2 Ammonium/ammonia removal from a stream |
| 05/28/2008 | EP1640344B1 Pure water production system |
| 05/28/2008 | CN201065378Y Treatment device for caustic sludge waste water |
| 05/28/2008 | CN201065377Y Biochemistry sewage treatment pool |
| 05/28/2008 | CN201065376Y Advanced treatment device for hull painting waste water |
| 05/28/2008 | CN201065375Y Portable water purifier |
| 05/28/2008 | CN201065374Y Device for treating hardly degradable chemical industry organic waste water |
| 05/28/2008 | CN201065373Y Great water producing quantity non-leak water purifier |
| 05/28/2008 | CN201065372Y Integrated sewage purifier |
| 05/28/2008 | CN101189053A Water purification apparatus |
| 05/28/2008 | CN101187298A Super deep water injection well movable type water treatment and well washing technology |
| 05/28/2008 | CN101186419A Method for treating electroplating mixed wastewater |
| 05/28/2008 | CN101186418A Method for reclaiming and utilizing paper-making industrial waste water |
| 05/28/2008 | CN101186417A Sewage biological denitrogenation and sludge decrement coupling bioreactor and technique thereof |
| 05/28/2008 | CN101186416A Packaging stage-type film bioreactor device for treating sewage or micro-polluted raw water |
| 05/28/2008 | CN101186415A Method and device for treating garbage percolate by using combination coagulated two-stage sequencing batch type biological film |
| 05/28/2008 | CN101186414A Method for treating organic waste water |
| 05/28/2008 | CN101186413A Treatment for paper plant sewage |
| 05/28/2008 | CN101186412A Method for treating urban sewage |
| 05/28/2008 | CN101186411A Hydrolysis acidification treatment method for aerobic activated sewage |
| 05/28/2008 | CN101186410A Method for treating ABS sewage |
| 05/28/2008 | CN101186409A Method for treating high concentration organic sewage |
| 05/28/2008 | CN101186408A Method for removing ammonia and nitrogen in garbage percolate |
| 05/28/2008 | CN101186407A System for desalinizing sea water by jet flow cavitation technique |
| 05/28/2008 | CN101186406A Method for purifying and reclaiming phosphorus from urine by electric flocculation technique |
| 05/28/2008 | CN101186405A Closed circulation processing technique for cyanide-containing waste water |
| 05/28/2008 | CN101186404A Method for treating pulp sewage |
| 05/28/2008 | CN101186403A Process to obtain water bodies larger than 15,000 m3 for recreation with low cost |
| 05/28/2008 | CN101186402A Fenton two-stage method oxidation processing technique for paper-making pulping waste water |
| 05/28/2008 | CN101186401A Oil mud harmless treatment and resource reclamation method |
| 05/28/2008 | CN101186400A Harmless treatment method for discarded slurry |
| 05/28/2008 | CN101186399A Integrated oil-containing waste water treating device |
| 05/28/2008 | CN101186398A Heavy metal waste water continuous treating method and treating device thereof |
| 05/28/2008 | CN101186397A Circulatory utilization method for straw washing water |
| 05/28/2008 | CN101186373A Method for processing paroxysmal mercury polluted water under emergency condition |
| 05/28/2008 | CN101186358A Sea water desalination and poor water purification device and method |
| 05/28/2008 | CN100390083C Technique for producing super oxyanion water in steady state |
| 05/28/2008 | CN100390082C Treatment and resource-reclaiming process for waste water from production of dimethyl isophthalate-5-sulfonic acid |
| 05/28/2008 | CN100390081C Process method for waste water containing nitrobenzene and aniline |