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| Application No. | Application Title | Issue Date |
| 20090206028 | COMBINED NUTRIENT RECOVERY AND BIOGAS SCRUBBING SYSTEM INTEGRATED IN SERIES WITH ANIMAL MANURE ANAEROBIC DIGESTER An economical, integrated system works in series with anaerobic digestion of animal waste to recover nitrogen and phosphorous, while also scrubbing the produced biogas.... | 08/20/2009 |
| 20080006577 | METHOD AND APPARATUS FOR WASTEWATER TREATMENT USING NITROGEN/PHOSPHOROUS REMOVAL PROCESS COMBINED WITH FLOATATION SEPARATION OF ACTIVATED SLUDGE A method and an apparatus for wastewater treatment using a nitrogen/phosphorus removal process combined with a floatation separation of sludge that is replaced by the gravity settling secondary clarifier are provided for effectively removing organic substances, nitrogen... | 01/10/2008 |
| 20070256982 | Compositions and Methods for Wastewater Treatment Methods and compositions utilizing aluminum, magnesium, and calcium-based additives for the treatment and neutralization of wastewater are described for removing contaminants from wastewater, including reducing phosphorous-containing compounds, total suspended solids (T... | 11/08/2007 |
| 20070193949 | System and method for treating carbon, nitrogen, phosphorous containing wastewater The present invention relates to a wastewater treating system and method for removing pollutants of carbon, nitrogen, phosphorous, comprising: a first reactor contains methanogenic bacteria, PAO and denitrifying bacteria for eliminating the organic carbon in denitrifica... | 08/23/2007 |
| 20070187324 | Process for improving phosphorus removal in waste water treatment without chemical addition A wastewater treatment process wherein a portion of a mixture of influent waste water and biomass are transferred from a first anaerobic region to a second anaerobic region having a relatively long retention time in order to produce additional very short chain fatty aci... | 08/16/2007 |
| 20070181493 | Wastewater treatment with aerobic granules A wastewater treatment system using aerobic granules has a large number of sequencing batch reactor tanks with high volumetric exchange rate, a variable cycle length and constant batch volume. The batch reactors are operated for C, N removal and P is removed chemically,... | 08/09/2007 |
| 20070108124 | Method and a plant for waste water treatment A method and a plant for waste water treatment. A method for purifying waste comprising the steps: a) storing waste water; b) optionally removing phosphorous compounds; c) leading the waste water to a first aerated biodegrading zone (7); d) leading waste water fr... | 05/17/2007 |
| 20070108125 | Membrane coupled activated sludge method and apparatus operating anoxic/anaerobic process alternately for removal of nitrogen and phosphorous Disclosed are a membrane coupled activated sludge method and apparatus operating anoxic/anaerobic processes alternately for removal of nitrogen and phosporus, wherein nitrogen and phosphorous together with organics in the sewage, wastewater, filthy water etc. can be sim... | 05/17/2007 |
| 20070102366 | Method for removal of phosphate from bodies of water by topical application of phosphate scavenging compositions with a hand held, hose end sprayer This invention relates to the field of phosphate removal from a body of water, especially in pools and spas. It is an improved method of removal of phosphate from pools and spas by the topical addition with a hand held, hose end sprayer of a phosphate scavenging agent o... | 05/10/2007 |
| 20070007215 | PHOSPHORUS REMOVAL SYSTEM AND PROCESS A phosphorus removal system is operable to remove phosphorus from an influent. The system includes a first section receiving the influent and discharging a first flow. A first coagulant inlet is positioned upstream of the first section and is in fluid communication with... | 01/11/2007 |
| 20070000836 | Process to enhance phosphorus removal for activated sludge wastewater treatment systems Contaminated wastewaters comprising biochemical oxygen demand (BOD), nitrogen and phosphorus are treated by an activated sludge process. The process utilizes an activated sludge tank, a solid-liquid separator, and a bioreactor to significantly reduce, or eliminate, wast... | 01/04/2007 |
| 20060249449 | Treatment of wastewater containing phosphorous and nitrogen A method and process for the treatment of wastewater containing phosphorous and nitrogen. The wastewater is first anaerobically treated to produce an anaerobic effluent from which insoluble organic carbon is separated to form a sludge rich in organic carbon that is used... | 11/09/2006 |
| 20060049103 | Phased activated sludge system The inventions describe a phased activated sludge treatment system that incorporates elements of batch treatment technology into a flow-through treatment process. Control of mixing and aeration systems are independent to facilitate the operation of the main reactor vess... | 03/09/2006 |
| 20060000769 | Apparatus and methods for control of waste treatment processes Waste-treatment processes are enhanced through generation and introduction of specific biological populations customized to perform or favor specific tasks either during the main process, for the formation or precipitation of certain biological nutrients, or to accompli... | 01/05/2006 |
| 20050211633 | Method and apparatus for treating pig manure A method for the treatment of phosphorus containing waste waters, particularly pig manure, which comprises separating the waste water into a solids portion and a liquid, portion mixing the liquid portion with a mineral substance to reduce the phosphor content, and separ... | 09/29/2005 |
| 20050133443 | Wastewater treatment control Wastewater treatment controls that maintain the ORP of a mixed liquor at a relatively stable value during a wastewater treatment process such as an aerated-anoxic wastewater treatment process. The wastewater treatment control may compare a setpoint value of ORP and a me... | 06/23/2005 |
| 20050082229 | Compositions for treating phosphate in water Compositions including alum and a smectite mineral material for the clarification of bodies of water by removal of dissolved solids, dissolved organic materials and other anions such as fluoride and chloride as well as the removal of total phosphorus from such bodies of... | 04/21/2005 |
| 20050072740 | Removal of phosphate from water Methods and compositions for removing phosphate from swimming pool waters are disclosed. The compositions include both soluble and substantially insoluble lanthanide carboxylates, preferred examples being lanthanum glycolate and lactate. The methods include the addition... | 04/07/2005 |
| 20050051495 | Apparatus and method for removing phosphorus from waste lagoon effluent An apparatus and method for removing phosphorus from a wastewater effluent stream from a hog waste lagoon. The wastewater effluent is introduced to the bottom of an inverted cone-shaped continuous crystallizer including a fluidized bed of struvite therein. An effective ... | 03/10/2005 |
| 20050000909 | Alum pellets Compositions including pellets of alum, a smectite mineral material and optionally sodium or calcium carbonate that can be delivered to a phosphate impoundment located at the bottom of a body of water at the bottom. The pellets of alum, smectite mineral material and opt... | 01/06/2005 |
