PHILIP BRUNO PEDROS
Engineers in Wakefield, MA
License number
Pennsylvania PE078574
Category
Engineers
Type
Professional Engineer
Address
Address
2
Wakefield, MA 01880
Pennsylvania
Pennsylvania
Personal information
See more information about PHILIP BRUNO PEDROS at radaris.comName
Address
Phone
281 Salem St, Wakefield, MA 01880
281 Salem St, Wakefield, MA 01880
49 Fairmount Ave, Wakefield, MA 01880
281 Salem St, Wakefield, MA 01880
Professional information
Serpentine Submerged Attached Growth Reactor
US Patent:
8282818, Oct 9, 2012
Filed:
Aug 26, 2010
Appl. No.:
12/807059
Inventors:
Keith Dobie - Humarock MA, US
Andrew R. McBrearty - Milton MA, US
Philip B. Pedros - Wakefield MA, US
Andrew R. McBrearty - Milton MA, US
Philip B. Pedros - Wakefield MA, US
International Classification:
C02F 3/04, C02F 3/06
US Classification:
210151, 2102571, 210618
Abstract:
A single submerged attached growth bioreactor interconnected to an equalization tank and a clear well. The equalization tank receives raw wastewater and provides primary settling of solids from the waste water. The output from the equalization tank is sent into the bioreactor. The wastewater flow path through the bioreactor biofilter is serpentine. Wastewater enters the first cell of the biofilter and flows downward to an opening at the biofilter bottom that hydraulically connects the first cell to a biofilter second cell. In the second cell the wastewater flows up from the bottom to an opening above the media within the cell, which connects the second cell with a third biofilter cell. Wastewater then flows downward through the third cell to the bottom and exits the biofilter through a pipe connected to a pump in the clear well. The hydrostatic pressure created by the differential liquid levels drives forward flow through the cells and into an effluent pipe at the bottom of the third cell.
Submerged Attached Growth Bioreactor
US Patent:
2007001, Jan 25, 2007
Filed:
Jun 26, 2006
Appl. No.:
11/474788
Inventors:
Philip Pedros - Wakefield MA, US
Keith Dobie - Humarock MA, US
Keith Dobie - Humarock MA, US
International Classification:
C02F 3/00
US Classification:
210615000
Abstract:
a wastewater treatment system having a submerged attached growth bioreactor connected to an equalization tank and a clear well. The bioreactor has a deep-bed sand filter. the wastewater flow through the filter is in two directions, i.e., down flow (forward flow) and up flow (reverse flow). The hydrostatic pressure created by the differential liquid levels within the tanks creates a forward flow from the equalization tank, into the bioreactor and out into the clear well. Reverse flow is accomplished by pumping from the clear well back up through the bioreactor. The reverse flow fills the headspace within the bioreactor, stops, and then begins to flow forward again. The flow through the bioreactor alternates between down flow and up flow. In an alternative embodiment, process air required for the oxidation of organics and nitrification is accomplished by aerating the clear well. The oxygen rich water is pumped into the filter from the clear well during the reverse flow. The process air is supplied to the clear well via air diffusers.
Nitrous Oxide Reduction From Biological Wastewater Treatment Processes
US Patent:
8157993, Apr 17, 2012
Filed:
Jan 21, 2010
Appl. No.:
12/657418
Inventors:
Philip B. Pedros - Wakefield MA, US
International Classification:
C02F 3/30
US Classification:
210188, 210202, 210218, 210258, 210603, 210604, 210903
Abstract:
In a wastewater treatment plant using methane gas, a by-product of anaerobic sludge digestion, to generate energy in a combustor to run the plant, a system for collecting the gas stream from the plant biological process and feeding the gas stream, containing nitrous oxide emissions, into the combustor. The nitrous oxide is thermally reduced down to nitrogen (N) and oxygen (O).
Ammonia Oxidation And Pipe Denitrification
US Patent:
7438813, Oct 21, 2008
Filed:
Apr 13, 2007
Appl. No.:
11/787030
Inventors:
Philip B. Pedros - Wakefield MA, US
Keith Dobie - Humarock MA, US
Keith Dobie - Humarock MA, US
International Classification:
C02F 3/00
US Classification:
210603, 210610, 210620, 210631
Abstract:
In a biological wastewater treatment system, the addition of an intermittently aerated second bioreactor to accomplish ammonium oxidation to predominately nitrite and then to achieve denitrification by introducing the effluent, containing nitrite, from the second bioreactor into the influent collection system or the head works of a wastewater treatment plant. Denitrification from nitrite occurs in the collection pipe using the influent organics as a carbon source.
Method Of Optimizing Influent Conditions And Chemical Addition Control For Biological Denitrification
US Patent:
7153429, Dec 26, 2006
Filed:
Nov 16, 2005
Appl. No.:
11/281800
Inventors:
Philip B. Pedros - Wakefield MA, US
International Classification:
C02F 3/00
US Classification:
210610, 210614, 210143, 2101981, 210220
Abstract:
A computer controlled system for denitrification of a wastewater stream. The system provides real time analysis of primary parameters effecting both denitrification and nitrification. A computer controlled external source of carbon is added to the treatment process in order to remove nitrates.
Method And Apparatus For Cleaning Effluent
US Patent:
6998048, Feb 14, 2006
Filed:
Dec 8, 2003
Appl. No.:
10/731721
Inventors:
Keith Dobie - Humarock MA, US
Philip B. Pedros - Wakefield MA, US
Philip B. Pedros - Wakefield MA, US
International Classification:
C02F 3/30, C02F 3/06
US Classification:
210605, 210615, 210617, 210622, 210259, 210903
Abstract:
The process and apparatus of the present invention provides an anoxic pretreatment tank, a granular fixed film denitrification reactor and a membrane bioreactor. Raw waste flows into the anoxic pretreatment tank, through a denitrification filter and then to a membrane bioreactor for nitrification and micro filtering. Contents of the membrane bioreactor are periodically recycled to the anoxic tank and the denitrification filter for BOD reduction, denitrification and coarse filtration.
Method And Apparatus To Enhance Denitrification Of Effluent
US Patent:
6905602, Jun 14, 2005
Filed:
Aug 27, 2003
Appl. No.:
10/648998
Inventors:
Keith Dobie - Humarock MA, US
Philip B. Pedros - Wakefield MA, US
Philip B. Pedros - Wakefield MA, US
International Classification:
C02F003/30
US Classification:
210605, 210615, 210151, 2101951, 2105322, 210903
Abstract:
A media used in conjunction with any system than is comprised at least of a septic or anoxic tank followed by an aerobic or alternating aerobic/anoxic treatment unit that is providing nitrification. The media enhances denitrification of effluent that has been recycled from the nitrification unit to the anoxic tank. The is comprised of a number of synthetic cords with a specific gravity less than the specific gravity of the effluent. The cords are attached to the bottom of the septic or anoxic tank. The cords will float in the liquid flow stream of the septic/anoxic tank providing a number of surfaces for fixed film organisms.
Biocast Process
US Patent:
8398855, Mar 19, 2013
Filed:
Sep 30, 2010
Appl. No.:
12/924614
Inventors:
Philip Bruno Pedros - Wakefield MA, US
Mark Mathew Simon - Wilbraham MA, US
Stephen Howard Brown - Spencer MA, US
Mark Mathew Simon - Wilbraham MA, US
Stephen Howard Brown - Spencer MA, US
International Classification:
C02F 3/30
US Classification:
210603, 210605, 210630, 210631, 210259, 210903
Abstract:
A waste treatment process comprised of an ammonification system to convert soluble organic nitrogen into ammonia nitrogen, followed by a physico-chemical process to remove a substantial amount of the ammonia as a recovered ammonium sulfate fertilizer or ammonium hydroxide (“aqua ammonia”), and followed by an ammonia oxidation process to oxidize the remaining ammonia from the physico-chemical process. The process reduces ammonia and carbonaceous organic matter to less than 10 mg/l and recovers ammonia in the form of either ammonium sulfate or ammonium hydroxide.