Digester Gas Cleaning Articles on Environmental XPRT

Anaerobic Digest

Boulder, Colorado: U.S. Distributed Renewables Forecast Published Navigant Research, a market research and consulting firm in Boulder, recently published the “U.S. Distributed Renewables Deployment Forecast, 2016-2025.” The report notes that deployment of distributed renewables, such as wind, solar and anaerobic digestion facilities, in the U.S. has accelerated in the last ...

Sep. 1, 2016

By BioCycle Magazine

Digester Developer Taps Natural Gas Markets

IN the late 1990s, Dan Eastman and two colleagues were researching business opportunities in the renewable energy industry. They were looking for a commercially viable technology that could take renewable energy from an experimental phase to a solid business investment. In 1999, Eastman and his partners founded Microgy, Inc., with its base in Wisconsin. The company licensed the Xergi anaerobic ...

Sep. 1, 2007

By BioCycle Magazine

Innovation Key To Biosolids Digestion

A $400 million project at the Blue Plains Advanced Wastewater Treatment Plant (AWTP) in Washington, D.C., involves building an innovative biosolids management system comprised of a thermal hydrolysis process, four 3.8-million gallon mesophilic digesters (measuring 70-ft tall by 100-ft in diameter) with fixed covers, a cogeneration system consisting of three 4.6-MW Solar Mercu ry 50 gas turbines ...

Oct. 1, 2012

By BioCycle Magazine

Development and Application of Biological H2S Scrubbers for Treatment of Digester Gas

ABSTRACTAs part of the California Energy Group (Former California Energy Commission) Public Interest Energy Research (PIER) Program, biological hydrogen sulfide (H2S) biogas cleaning was evaluated. The biological H2S scrubber uses bacteria to oxidize the sulfide to produce both elementary sulfur and sulfuric acid. This system was tested at the Inland Empire Utilities Agency’s Regional Plant 1 ...

Oct. 22, 2006

By Water Environment Federation (WEF)

Digester Gas Powers Energy Conservation at Baltimore`s Back River WWTP

Performance contracting provided the City of Baltimore and the Back River Wastewater Treatment Plant with the expertise and guaranteed savings to warrant implementation of a significant digester gas utilization system as well as other energy saving facility improvements. The Back River process for wastewater treatment resulted in solids that were digested, producing methane gas, a good portion of ...

Oct. 13, 2007

By Water Environment Federation (WEF)

Digester gas - countess wear sewage treatment works - case study

South West Water leads the way with highly efficient biogas combined heat and power Technology, utilising otherwise harmful digester gas. South West Water (SWW) provides clean water and sewerage services to over 1.6 million people, 365 days a year. Dedicated to environment and conservation issues, SWW is committed to using energy efficient Combined Heat and Power (CHP) generation systems. SWW has ...

Oct. 31, 2011

By ENER-G

Landfill Gas Clean-up and Upgrading to Hydrogen System

Quadrogen has extensive knowledge of and experience in biogas and landfill gas clean-up systems technology, design and development. Quadrogen’s Integrated Biogas Clean-up System will remove all sulfur species, siloxanes, chlorides, water, oxygen and other impurities from biogas to the parts per billion level required for reliable and long term operation. Quadrogen also has extensive ...

Mar. 12, 2014

By Pioneer Air Systems

Significance of Phosphorus in Anaerobic Digestion Residuals Recovery

Gas production and energy potential typically dominate the spotlight in the anaerobic digestion (AD) technology world, while benefits of residues and nutrient management from AD are overshadowed. However, utilizing AD residues and considering the value of properly managing nutrients, such as phosphorus, may make-or-break projects considered uneconomical based on energy production value alone. ...

Nov. 6, 2014

By BIOFerm™ Energy Systems

Cleaning biogas with bacteria

Organic materials added to an anaerobic digester commonly contain sulphur components. During the anaerobic digestion process, the sulphur is converted into hydrogen sulphide (H2S), which is absorbed by the biogas. When the biogas produced in an AD plant goes on to be combusted in a gas engine or boiler, the H2S will give off sulphur dioxide (SO2) and sulphuric acid ...

Nov. 15, 2011

By Biogasclean A/S

Cleaning Up Gasification Syngas

Documento sin título ...

Jan. 1, 2005

By Merichem Company

Low energy mixing to optimize anaerobic digestion at the Kitchener WWTP

The existing Kitchener Wastewater Treatment Plant (WWTP) is a conventional secondary treatment facility, with a rated capacity of 122,745 mVd. The plant is comprised of two separate secondary treatment plants (Plant 1 and Plant 2) served by a common headworks facilities and primary clarifier facilities. Plant 1 was constructed in the early 1960s and Plant 2 was constructed in the mid-1970s. Both ...

Jan. 5, 2017

By Ovivo (Formerly Eimco Water Technologies)

Do you know everything you need to know about anaerobic digestion?

If you haven’t heard about anaerobic digestion yet, this blog post is the perfect place to start, and if you have, then you will know that technology is an ideal way for businesses to recycle their waste and cut their carbon footprint. Anaerobic digestion is an innovative treatment and an ideal way for businesses in the agricultural and industrial sectors to recycle their waste and cut ...

Dec. 5, 2013

By GPT Waste Management Ltd

A Reinvigorated Approach to Operational Safety in the Design of a New Digestion System for Spokane, Washington

ABSTRACTThe failure of Digester No. 3 at the Riverside Park Water Reclamation Facility (RPWRF) in Spokane, Washington triggered a host of changes to many aspects of project implementation, as well as daily operation. Planning, design, construction and startup of improvements now emphasize improved communication and collaboration between the design team and plant staff, as well as a ...

Oct. 22, 2006

By Water Environment Federation (WEF)

Cayuga County, New York Pioneers Community Digester Program

New project of Soil And Water Conservation District will help control odors and improve water quality while generating biogas with an innovative system. A bioenergy vision that started several years ago is finally being built at the Cayuga County Soil and Water Conservation District headquarters in Auburn, New York. Jim Hotaling, Executive Director, has long envisioned a community digester ...

Apr. 1, 2007

By BioCycle Magazine

Biolimp siloxa for plant for biogas cleaning

The biogas produced in a digester, landfill or waste water plant is normally treated in order to remove water, H2S, dust and/or CO2. The choice of the cleaning method employed and the compound to be removed depends on the type of end use of the gas. This paper focuses on desing, star up and operation of biogas cleaning plant for removal dangerous component (water, H2S, NH3, siloxane and ...

Jul. 8, 2008

By Energy & Waste S.l

Suddenly greenhouse gas regulations

FROM a whisper to a scream, from 0 to 60 in 4 seconds or less, whether you prefer music metaphors or car metaphors, all of a sudden it seems that regulation of greenhouse gases (GHGs) is about to descend upon us. My reading list on the plane today includes the new U.S. Environmental Protection Agency GHG reporting requirements, a draft protocol from the California Climate Action Registry (CCAR) ...

Apr. 1, 2009

By BioCycle Magazine

Gas Safety in Confined Spaces

Introduction An offshore worker ensures a vessel is safe to enter; a plant manager enters a small plant room; a contractor inspects the lining of a sewage pipe. All these personnel face common dangers, despite working in widely different industries. Gas-related injury poses a serious threat in any confined space where the free movement of air is limited. A confined space ...

Apr. 30, 2012

By Crowcon Detection Instruments Ltd - a Halma company

Landfill gas to fleet fuel in Ohio

In mid-September, the Solid Waste Authority of Columbus, Ohio (SWACO) cut the ribbon on Phase I of its Green Energy Center that will convert landfill gas to compressed natural gas (CNG) for use in CNG-powered cars and medium duty trucks. The facility will produce enough CNG annually to replace almost 250,000 gallons of gasoline, plus additional natural gas sufficient to generate electricity for ...

Oct. 1, 2008

By BioCycle Magazine

Integrated Solutions - Organics Management, Clean Water and Renewable Energy

California’s Chino Basin Organics Management Strategy uses creative ways to protect its watershed while expanding composting and digesting capacity for manure and biosolids. CLEAN WATER is a vital commodity in the semiarid environment within the coastal plain of southern California. About two-thirds of the water supply is imported from often great distances and at significant expense to ...

Feb. 1, 2002

By BioCycle Magazine

SGBI opinion article: shale gas

Government perceives electric vehicles to be a panacea that will solve problems surrounding air quality and CO2 emissions simultaneously. The EV has two main selling points: reduced CO2 emissions and high efficiency. However, these are only valid at a superficial level and the argument disintegrates under any level of scrutiny. In terms of CO2 emissions, EVs replace ‘average’ cars to ...

Feb. 1, 2011

By CNG Services Limited

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