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US20100307970 WASHABLE ANAEROBIC DIGESTER WITH FIXED BIOFILM  
An effluent treatment apparatus which is a flushed anaerobic digester with fixed biofilm (FAD system) is disclosed. The FAD system creates and maintains an optimum environment for the development...
US20130264279 RENEWABLE ENERGY MICROGENERATION SYSTEM  
A renewable energy microgeneration system is disclosed. The system comprises one or more portable containers that include a plurality of small holding tanks that are configured to perform at least...
US20120312742 RENEWABLE ENERGY MICROGENERATION SYSTEM  
A renewable energy microgeneration system is disclosed. The system comprises one or more portable containers that include a plurality of small holding tanks that are configured to perform at least...
US20110263407 Efficiency of centrifuge in municipal sludge dewatering  
In a sludge dewatering system, digested sludge with polymer solution added to promote flocculation is delivered to, and fills a treatment tank to a predetermined level The sludge is then agitated...
US20150027179 SYNGAS BIOMETHANATION PROCESS AND ANAEROBIC DIGESTION SYSTEM  
An anaerobic digester is fed a feedstock, for example sludge from a municipal wastewater treatment plant, and produces a digestate. The digestate is dewatered into a cake. The cake may be dried...
US20120080374 OZONE AND ANAEROBIC BIOLOGICAL PRETREATMENT FOR A DESALINATION PROCESS  
In one embodiment, a method of treating a source water containing at least one toxin is provided, the method comprising: (i) exposing a source water to a gas comprising ozone under a condition...
US20110089105 HYBRID AEROBIC AND ANAEROBIC WASTEWATER AND SLUDGE TREATMENT SYSTEMS AND METHODS  
A hybrid method and system of treating wastewater with reduced energy usage is disclosed. The treatment system has a sorption system, an anaerobic digester that digests or converts at least a...
US20130186823 METHOD FOR THE ACIDIFICATION OF MANURE  
By acidifying manure, emissions of methane gas and ammonia gas are prevented significantly. The method for the acidification of manure is provided by an acidic flow of an anaerobic digestion...
US20120285884 Calcium Oxide Cement Kiln Dust for Granulation of Palm Oil Mill Effluent  
A use of calcium oxide-cement kiln dust (CaO-CKD) for anaerobic granulation of palm oil mill effluent. A process to produce biogas from palm oil mill effluent using calcium oxide-cement kiln dust...
US20140034573 HYBRID AEROBIC AND ANAEROBIC WASTEWATER AND SLUDGE TREATMENT SYSTEMS AND METHODS  
A hybrid method and system of treating wastewater with reduced energy usage is disclosed. The treatment system has a sorption system and an anaerobic digester that digests or converts at least a...
US20100032370 ANAEROBIC DIGESTER DESIGN AND OPERATION  
An apparatus for the anaerobic digestion of solid waste is disclosed. The apparatus includes a pre-digestion treatment chamber and an anaerobic digester chamber coupled to the pre-digestion...
US20130334133 Methods For Using Ozone To Enhance Anaerobic Digestion  
The invention discloses systems and methods for producing a gas stream containing ozone and a “carrier” or sweep gas that has an oxygen concentration that is below a predetermined percentage for...
US20140197097 Simultaneous Anoxic Biological Phosphorus and Nitrogen Removal with Energy Recovery  
Methods and systems are provided for treating wastewater to simultaneously remove nitrogen, carbon, and phosphorus, while recovering energy in the form of methane and carbon dioxide. An...
US20060289356 Digesters  
Methods and devices are disclosed for converting predominantly organic waste materials, such as sludge, into useful byproducts.
US20090227003 Methods and Systems for Biomass Recycling and Energy Production  
The present invention comprises methods and systems for treating biomass wastes to result in usable byproducts. Biomass is treated to remove debris, transferred to microbial digester units, such...
US20100089823 FEEDBACK SYSTEM FOR ENHANCING ELIMINATION OF BIOMASS IN SEWAGE SLUDGE  
Already-treated sludge is fed back into incoming sewage, and is effective to supply nutrients needed for the microbiological breakdown of the sludge. The feedback sludge has a solids content of...
US20150076058 WASTE PROCESSING SYSTEM WITH ANAEROBIC MECHANISM AND METHOD OF OPERATION THEREOF  
A waste processing system includes: an input module for converting input organic waste into processed input waste; a digester module, coupled to the input module, for generating biogas and...
US20150210577 PROCESS FOR REDUCING THE PRODUCTION OF SLUDGE BY MUNICIPAL OR INDUSTRIAL WASTEWATER PURIFICATION PLANTS, AND EQUIPMENT FOR THE IMPLEMENTATION THEREOF  
A process for reducing the production of sludge by municipal or industrial wastewater purification plants, comprising a step of mesophilic or thermophilic anaerobic digestion (20), or anaerobic...
US20140034572 METHODS AND SYSTEMS FOR MAINTAINING THE TEMPERATURE OF WASTEWATER IN A TREATMENT FACILITY  
Volatile organic compounds (VOCs), such as benzene, toluene, ethylbenzene, xylene and methanol may be removed from wastewater obtained from oil or gas exploration or production operations by way...
US20130299420 PHOSPHATE RECOVERY FROM ACID PHASE ANAEROBIC DIGESTERS  
A method for recovering phosphate from sewage treatment plants using multi-stage anaerobic digestion includes the treatment of organic acid digest with calcium hydroxide, calcium oxide, and...
US20070209997 Continuous flow biosolids stabilization  
A continuous flow wastewater treatment process is implemented for stabilizing biosolids. Sludge from a mesophyllic digester flows through heat exchangers to raise the temperature to a...
US20130146533 COMPARTMENTALIZED ANAEROBIC DIGESTERS  
An anaerobic digestion device includes a digester body configured to receive organic waste and a plurality of plates coupled to one another so as to divide an interior volume of the digester body...
US20120181229 METHOD OF TREATING A PLANT WASTEWATER AND TREATMENT SYSTEM THEREFOR  
A method of treating wastewater containing an organic compound includes feeding wastewater to an anoxic tank, adding compounds containing nitrogen and phosphorus components to wastewater,...
US20080185336 Process for solid-state methane fermentation of biomass materials and fermentation apparatus system therefor  
A process for producing a biogas by solid-state fermentation of a solid biomass material which comprises the steps of: (1) pelletizing the biomass material into pellets; (2) introducing the...
US20070029252 System and process for biomass treatment  
A system including an apparatus is presented for treatment of biomass that allows successful biomass treatment at a high solids dry weight of biomass in the biomass mixture. The design of the...
US20100032369 SEWAGE PURIFICATION PLANT AND PROCESS THEREOF  
Plant and procedure thereof for the purification of sewage that enables the sewage to be purified and energy to be obtained, and at the same time enables a product to be obtained given by the...
US20080314825 DE-NITRIFICATION TREATMENT SYSTEM AND METHOD  
An apparatus is provided that includes: a containment system 208 having at least one sidewall and bottom that are substantially impermeable to a passage of water;a distribution system 124 to...
US20130140230 NOVEL SYSTEMS AND METHODS FOR CONVERTING GASEOUS BYPRODUCTS OF WASTEWATER TREATMENT INTO ENERGY  
A method for removing methane from biogas is described. The method includes: (i) receiving biogas including methane and other components into a first tank; (ii) receiving water into the first...
US20110084020 NOVEL SYSTEMS AND METHODS FOR CONVERTING GASEOUS BYPRODUCTS OF WASTEWATER TREATMENT INTO ENERGY  
A method for removing methane from biogas is described. The method includes: (i) receiving biogas including methane and other components into a first tank; (ii) receiving water into the first...
US20100089822 Micro Gas Attendant System  
A lagoon of effluent is stablished, comprising a set of sub-portions at different levels in the lagoon associated with a corresponding set of concentrations of dissolved oxygen, each sub-portion...
US20090145843 Method for reducing carbon dioxide emissions and water contamination potential while increasing product yields from carbon gasification and energy production processes  
Carbon dioxide from a process which oxidizes a carbon containing feed is separated and reduced to carbon monoxide using a carbon dioxide reduction reactor [22, 26] coupled to a water gas shift...
US20090308807 METHOD OF REMOVING PHOSPHORUS AND/OR NITROGEN  
The present invention provides a method of treating wastewater containing phosphorus and/or nitrogen for removing phosphorus and/or nitrogen from the wastewater, including following steps of: (a)...
US20140251899 SECONDARY SOLID-PHASE ANAEROBIC DIGESTION PRODUCING MORE BIOGAS  
The present invention relates to a method for taking liquid anaerobic digestion effluent and increasing the solids content by using the effluent and biomass to further digest both.
US20150191384 METHOD FOR TREATING ORGANIC WASTE, IN PARTICULAR SLUDGE FROM WASTEWATER TREATMENT PLANTS, AND FACILITY FOR IMPLEMENTING SAID METHOD  
The invention relates to a method for treating organic waste, in particular to a method for treating sludge from wastewater treatment plants, in order to produce power and/or hygienised organic...
US20090206028 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.
US20100276361 System and Method for Biological Wastewater Treatment and for Using the Byproduct Thereof  
A wastewater treatment system and process biologically treats wastewater to produce substantially clean water effluent and byproducts. The treatment system includes an array of media wheels that...
US20080277336 PERMANENT ACCESS PORT  
A method and apparatus for the anaerobic digestion of high-solids waste material. The apparatus includes a closed container having a relatively circular outer wall. The closed container has a...
US20120168373 Thermally enhanced integrated wastewater treatment system  
Novel methods and systems for efficient and economic treatment of wastewater, and other fluidized and solid organic wastes, comprise heating the aerobic digestion process with waste heat given off...
US20130140231 METHOD AND SYSTEM FOR SLUDGE OZONATION IN A WASTEWATER TREATMENT SYSTEM  
Method and system for treating wastewater includes treating sludge with ozone in a plug-flow type reactor to cause lysis of biosolids in the sludge. The ozonated sludge may be provided to an...
US20080302722 Removal of ammonia from fermentation effluent and sequestration as ammonium bicarbonate and/or carbonate  
A method for the removal and sequestration of ammonia nitrogen from anaerobic fermentation effluent while producing a higher BTU biogas. The method includes the steps of removing the slurry from...
US20060086659 Method for digestion of sludge in water purification  
The present invention relates to a method for digestion of sludge in water purification, which method comprises the steps: providing an enzyme mixture capable of digesting natural polymeric...
US20060175252 Two phase anaerobic contact sequencing batch reactor (ACSBR) system for treating wastewater containing simple and complex organic constituents  
A two-phase anaerobic treatment system and method for the treatment of wastewaters containing simple and complex organic constituents is provided wherein the complex organic constituents are...
US20090107913 System and Method for Anaerobic Digestion of Biomasses  
Provided herein are methods and system for the production of biogas, U.S. Environmental Protection Agency classified Class A Biosolids, and pathogen reduced organic liquid fertilizer. Through the...
US20100206807 Municipal septic tank biogas collection system and method  
A biogas collection system and method for collecting and utilizing biogas that is produced as a byproduct of anaerobic digestion in a wastewater treatment system having one or more wastewater...
US20150060356 SYSTEM AND METHOD FOR IMPROVED ANAEROBIC DIGESTION  
A method for improved anaerobic digestion is presented. The method includes mixing a volume of waste material with water to form a feedstock mixture. The volume of waste material includes an...
US20080277337 Method for producing hydrogen from organic wastes  
The present invention relates to a method for producing hydrogen by batch process capable of replacing the existing complex continuous organic waste treatment system by using pretreated organic...
US20130319935 REACTOR FOR ANAEROBIC PURIFICATION OF WATER  
The present invention relates to a reactor for the purification of influent water by means of anaerobic microorganisms comprising at least one separator which is configured so as to separate a...
US20140124439 APPARATUS AND METHOD FOR ANAEROBIC WASTEWATER TREATMENT WITH MEMBRANE  
The present disclosure relates to an apparatus and method for anaerobic wastewater treatment with a membrane, which effectively generates biogas and suppresses fouling on a membrane surface by...
US20090255869 COMBINED ANAEROBIC PROCESS APPARATUS FOR TREATING ORGANIC WASTES  
The present invention relates to a combined anaerobic process apparatus for treating organic wastes, comprising: a first solid-liquid separator to separate organic wastes into liquid wastes and...
US20090032458 Biogas Producing Facility With Anaerobic Hydrolysis  
The present invention relates to a method and a facility for conversion of organic waste into biogas, i.e. a methane containing gas, with an improved efficiency and economy. The method comprises...

Matches 1 - 50 out of 109 1 2 3 >