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7473365 Method and installation for the biological treatment of water using activated sludge and comprising aeration regulation  
The biological water or wastewater treatment process described herein alternates aeration and anoxic phases during a water treatment process. According to one exemplary process, the water or...
7442306 Autotrofic sulfur denitration chamber and calcium reactor  
The present invention describes novel biological systems and methods for efficiently reducing nitrate levels and otherwise conditioning aquarium water and water in similar environments, and the use...
7439054 Bioreactor system for biological degradation of oily sludge  
A 10,000 gallon sequencing batch reactor tank for the on-site bio-degradation of oily sludge. Bacteria already present in and adapted to oily sludge degrade the hydrocarbons found in oily sludge...
7431839 Low oxygen biologically mediated nutrient removal  
The present invention is directed to a substantially odorless biologically mediated treatment process for solid and liquid organic wastes. The present invention also provides for a novel nutrient...
7416669 Biological nutrient removal process and process control system for same  
The present disclosure describes an improved system and method for treating wastewater or other liquid. Furthermore, the present disclosure provides a control program for operating the system and...
7413654 Wastewater treatment control  
A wastewater treatment method. The method includes establishing a setpoint value of oxidation-reduction potential of a mixed liquor, measuring a measured value of oxidation-reduction potential of...
7410584 Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane  
Methods and apparatus for treating wastewater are described, one method embodiment including the steps of flowing a stream comprising mixed liquor suspended solids and fixed growth solids to a high...
7393452 Compositions and methods for the treatment of wastewater and other waste  
A method for processing environmental samples to remove or otherwise reduce the level of certain chemical species. In a preferred embodiment, the present invention contemplates a process for...
7374683 Biofilter and method for filtering a waste liquid  
The biofilter is used for the purification of a waste liquid using layers of filtering material, wherein the waste liquid moves downwardly by gravity while an O 2 -containing gas moves upwardly...
7371323 System and method for reducing wastewater contaminants  
A wastewater treatment system. Toilet, kitchen, commercial, and industrial process waste is segregated from the total wastewater stream and treated in order to reduce the total nitrogen,...
7318896 Method and apparatus for utilization of recovered magnesium ammonium phosphate  
A method utilizing inorganic nutrient salts, which are inexpensive and easily usable, for waste water whose aerobic and/or anaerobic biological treatment cannot be established unless inorganic...
7314563 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...
7309434 Apparatus and method for wastewater treatment  
A method for treating wastewater. The method comprises: providing a first dose of air to aerate a medium bed; supplying a dose of wastewater to the aerated medium bed; allowing nitrification of the...
7309433 Fluid bed expansion and fluidisation  
Method and apparatus ( 8 ) in which a biomass is carried on a substrate which is fluidised. The fluidised substrate has below it a lazer of distributor particles through which the fluidising medium...
7306733 Autotrophic denitrification chamber and calcium reactor  
The present invention describes novel biological systems for efficiently reducing nitrate levels and otherwise conditioning aquarium water and water in similar environments.
7294272 Method for the treatment of waste  
A waste treatment system suitable for domestic use and capable of producing water suitable for recycling within the household. The system includes a bioreactor ( 30 ) and a decomposition chamber (...
7279100 Methods and apparatus for treating wastewater employing a high rate clarifier and a membrane  
Methods and apparatus for treating wastewater are described, one method embodiment including the steps of flowing a mixed liquor suspended solids to a high rate clarification stage, forming a...
7267764 Apparatus for removing nitrogen  
An apparatus for removing nitrogen is provided herein. In the apparatus, the nitrogen is removed from wastewater containing a BOD component and ammonium nitrogen by anaerobic ammonium oxidation....
7235178 Process and assembly for the treatment of waste water on ships  
Process for treating waste water on ships in which the waste water is pretreated by surface filtration, the pretreated waste water being collected in a first tank acting as a mixing tank and...
7211429 Organic waste material treatment process  
An organic waste material treatment process comprising subjecting the organic waste material to conditions under which anaerobic digestion occurs followed by conditions under which aerobic...
7208090 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...
7195712 Wastewater treatment apparatus and method for removing nitrogen and phosphorus  
Provided is a wastewater treatment apparatus for removing nitrogen and phosphorus having an anaerobic tank, an anoxic tank, an aerobic tank and a clarifier, wherein the aerobic tank includes has a...
7172699 Energy efficient wastewater treatment for nitrogen and phosphorus removal  
In a wastewater treatment plant, the liquid side of the plant has preferably four stages for nitrification and/or denitrification, prior to further treatment such as a clarifier. Energy...
7144509 Process and apparatus for waste water treatment  
Method and apparatus for treating contaminants in water under anaerobic conditions is disclosed. The method includes adding to contaminated water a composition including an aqueous mixture of at...
7105091 Waste treatment with control over biological solids  
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, or for...
7087170 Method and system for treating wastewater containing organic compounds  
A system for treating wastewater containing organic compounds is provided, comprising an anaerobic bioreactor, an aerobic bioreactor disposed rearwardly of the anaerobic bioreactor, and a membrane...
7087169 Combined tidal vertical flow and horizontal flow wastewater treatment system and method  
A wastewater treatment system includes a vertical flow marsh cell that is adapted to contain media and to support plants having roots extending into the media, the roots and media positioned to...
7060186 Method and apparatus for the treatment of wastewater  
A batch process and apparatus for treating wastewater in a system employing anaerobic and aerobic zone reaction vessels under elevated pressure is disclosed in which an amount of processed...
7056438 Flood and drain wastewater treatment system and associated methods  
The wastewater treatment system includes at least one fluidized bed reactor, such as a vessel containing media to which biofilms may attach. The vessel has an inlet and an outlet adjacent a bottom,...
7033503 Municipal wastewater treatment apparatus and process with a continuous feed and cyclic aeration  
Disclosed are efficient municipal wastewater treatment apparatus and process characterized in that the nitrogen is removed by nitrification and denitrification reaction in the cyclic aeration...
7025883 Autotrofic sulfur denitration chamber and calcium reactor  
The present invention describes novel biological methods for efficiently reducing nitrate levels and otherwise conditioning aquarium water and water in similar environments.
7014769 Method for reducing nitrate concentration in wastewater  
The present invention is a method for reducing the nitrate concentration in wastewater within a wastewater treatment apparatus configured to define an aeration zone and a quiescent zone or dilution...
7008538 Single vessel multi-zone wastewater bio-treatment system  
A process for treating wastewater and a system for practicing the process includes: providing a plurality of zones within a single vessel wastewater treatment system; feeding wastewater into the...
7005068 Method and apparatus for treating animal waste and wastewater  
Novel methods and apparatuses are disclosed for the treatment of wastewater to reduce often associated offensive odors by promoting aerobic conditions through decreasing the amount of oxygen...
6936170 Methods and apparatus for biological treatment of aqueous waste  
A biofilter system of the present invention utilizes an Alternating-Aerobic-Anoxic (AAA) process in a single reactor to provide efficient and cheap removal of carbonaceous materials, nitrogenous...
6926830 Combined activated sludge-biofilm sequencing batch reactor and process  
A new biofilm-activated sludge Sequencing Batch Reactor (SBR) treatment process for sewage or wastewater has successfully been developed as the third generation SBR (SBR3). This new SBR3 process...
6896805 Tidal vertical flow wastewater treatment system and method  
A wastewater treatment system includes a vertical flow marsh cell that is adapted to contain media and to support plants having roots extending into the media, the roots and media positioned to...
6881339 Process for treating industrial and municipal waste water highly loaded with ammonium  
There is a disclosed or process for treating industrial waste water highly loaded with ammonium, by treating the waste water with nitrifying microogransims (nitric bacteria) in the presence of a...
6881338 Integrated tidal wastewater treatment system and method  
A wastewater treatment system includes a first lagoon having an inlet for receiving wastewater to be treated and a first vertical flow marsh cell having a bottom outlet. Water can be transported...
6875357 Process and apparatus for treatment of waste water  
A process for removing organic contaminants, nutrients and suspended solids from waste water. A three-phase cycle is used, consisting of a mix fill phase, a react fill phase and a react discharge...
6872313 Domestic wastewater treatment system  
A method for treating domestic wastewater, in situ, in a single tank. The use of which obviates the need for traditional septic tanks as well as lessening the burden, and reliance on, central water...
6833074 Waste treatment with control over biological solids  
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, or for...
6830689 Process for removing phosphorus from wastewater utilizing a triple basin wastewater treatment system  
A multi-phase process for removing phosphorus from wastewater in a triple ditch or triple basin system where wastewater influent is sequentially directed to each of the three basins or ditches,...
6773595 Compartmentalized facultative lagoon and method of creating and maintaining such a lagoon  
Compartmentalization of contents of a facultative lagoon into two separate zones improves the economic efficiency of the lagoon for emission control by eliminating macroscopic mixing between the...
6773592 Systems and methods for treating waste water using an inoculum  
A method of treating waste water and particularly sewerage is disclosed. The method involves treating the conduit system making up the sewerage network before it reaches a typical sewerage...
6770198 Method of treating waste water  
The current invention relates to treatment of waste water and in particular to treatment of sewerage effluent. The current invention broadly resides in a method of treating waste water in a waste...
6758972 Method and system for sustainable treatment of municipal and industrial waste water  
The present invention relates to a method for treatment of wastewater. More particularly, the methods of the present invention are designed for the biological removal from wastewater of...
6743362 Sewage treatment process  
A sewage treatment plant, on the liquid side, is operated so as to effect nitrification and denitrification within a single tank and simultaneously to remove water, without the need for separate...
6730226 Water purifying method and apparatus  
A method for purifying water including nitrification by aerobic bacteria and denitrification by anaerobic bacteria in an apparatus by providing an elongated, closed water channel.
6730225 Wastewater treatment system and method  
A system and method for treating wastewater including: delivering untreated wastewater into a permeable container disposed in an impoundment. A wastewater input moves untreated wastewater to the...
Matches 1 - 50 out of 341 1 2 3 4 5 6 7 >