Digester Gas Cleaning Articles on Environmental XPRT

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

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)

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

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

Landmark farm project uses XEBEC’s gas purification system to deliver pipeline-grade natural gas to Michigan Gas Utilities customers case study

Fennville Biogas Project at a Glance: Type: Animal waste to pipeline-grade natural gas and electricity generation Claim to fame: First commercial facility in North America to generate both pipeline-grade methane and electricity from animal waste Location: Scenic View Dairy, Fennville, Michigan Animal waste received ...

Oct. 30, 2014

By Xebec Adsorption Inc.

OSE II economic comparison to dispersants and mechanical Clean ups

INTRODUCTION Oil Spill Eater II is the name of a non-toxic product which provides the means for moving oil spill response out of its 19th Century methodology into the realm of advanced technological 21st Century breakthroughs for addressing and remediating 100% of any spill in any environment. In comparison, current response methods employed by three major oil companies - BP, Exxon ...

Dec. 9, 2011

By OSEI - Oil Spill Eater International, Corp

Challenges of Fuel Gas Purification for Cogeneration Under Stringent Regulatory Requirements

ABSRTRACTInland Empire Utilities Agency (IEUA), a municipal water district based in Chino, CA is currently executing a cogeneration power project, titled Renewable Energy Efficiency Project (REEP) at the Regional Plant No.5 (RP-5), which showcases a variety of innovative technologies for the power production. The project involved many innovative technologies, most of which are still in the ...

Oct. 22, 2006

By Water Environment Federation (WEF)

Generation using gas-fuelled engines in South Africa – an overview

Most gas engines are Otto cycle spark ignition internal combustion reciprocating engines using natural gas as the primary fuel. Smaller models utilise stochiometric combustion while the larger engines are lean burn engines with pre-chamber ignition systems. The engines are coupled with packaged generator sets, ...

Nov. 6, 2013

By Clarke Energy

Case study - Sacramento, California: The first U.S. city to power refuse trucks on renewable natural gas (RNG) made from separated food

California has long been a pioneer in implementing sustainable transportation strategies, and yet again, the State can claim another first-of-its land project in the United States as its own. By collecting and diverting food waste from a local landfill, two Sacramento-area companies, CleanWorld and Atlas Disposal Industries, have opened the Sacramento Biodigester — the first closed-loop ...

Sep. 12, 2015

By Energy Vision

Landfills have a huge greenhouse gas problem. Here’s what we can do about it.

We take out our trash and feel lighter and cleaner. But at the landfill, the food and yard waste that trash contains is decomposing and releasing methane, a greenhouse gas that’s 28 times more potent than carbon dioxide. Landfill gas also contributes to smog, worsening health problems like asthma. Globally, trash released nearly 800 million metric tons (882 million tons) of ...

Oct. 25, 2016

By Ensia

Huckabay Ridge

Location: Stephenville, TX Online date: November 2006 Acquisition Date: November 2010 In 2010 Element Markets acquired the largest anaerobic digestion facility in North America through its wholly owned subsidiary EM Biogas. The Huckabay Ridge Anaerobic Digestion Project, located in a large dairy community in Stephenville, Texas, turns manure ...

May 24, 2012

By Element Markets LLC

Turning waste into power

Economic, social and environmental factors dictate the necessity to manage waste to a new level. Wastewater plants, landfills, farms and food plants are all the owners of biomass that can be digested to produce biogas and turned into power. Biogas can be burned directly in boilers for heat recovery and used for manufacturing, heating or cooling; this is the simplest method of direct biogas ...

Aug. 5, 2013

By Hurll Nu-Way

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