bioaugmentation microbial culture Articles

Bioaugmentation treatment of PV wafer manufacturing wastewater by microbial culture

The wastewater of silicon photovoltaic (PV) battery manufacturing contained polyethylene glycol (PEG) and detergents, which possessed the characteristics of high content of organics and low bioavailability, and then resulted in high treatment costs. To address the difficulties of existing treatment facilities in stably meeting discharge standards, eight tons of microbial culture (consisting of ...

Aug. 18, 2015

By IWA Publishing

Bioaugmentation for accelerated in-situ anaerobic bioremediation

A successful anaerobic bioaugmentation was carried out on a trichloroethene (TCE)-contaminated aquifer at Dover Air Force Base, DE, using a microbial enrichment culture capable of dechlorinating TCE to ethene. A hydraulically controlled pilot system 12 18 m was constructed 15 m below ground surface in an alluvial aquifer to introduce nutrients and substrate into the groundwater. ...

Aug. 7, 2011

By Terra Systems, Inc. (TSI)

Bioaugmentation to Treat Chlorinated Solvents in Fractured Bedrock

ABSTRACT: An in situ bioremediation pilot study was performed at a former industrial site in New Jersey where groundwater has been impacted by historical releases of chlorinated solvents. The target area for treatment is a fractured, intermediate bedrock zone. The remedial objective at the Site is to treat the groundwater while minimizing the impact of the remedial system on the re-development of ...

Jun. 13, 2007

By EOS Remediation, LLC

Reduction of start-up time through bioaugmentation process in microbial fuel cells using an isolate from dark fermentative spent media fed anode

An electrochemically active bacteria Pseudomonas aeruginosa IIT BT SS1 was isolated from a dark fermentative spent media fed anode, and a bioaugmentation technique using the isolated strain was used to improve the start-up time of a microbial fuel cell (MFC). Higher volumetric current density and lower start-up time were observed with the augmented system MFC-PM (13.7 A/m3) when ...

Jun. 28, 2015

By IWA Publishing

DOD evaluates bioaugmentation for remediating low-pH aquifers

The US Department of Defense (DOD) has completed pilot-scale work on the 'MAG-1' site at Fort Dix, NJ, to test suitability of anaerobic bioremediation for an aquifer with low pH. Project results will be used to design full-scale ground-water treatment at MAG-1. In addition, technical criteria gained from the demonstration will be integrated into DOD’s remediation strategy for its many facilities ...

Mar. 29, 2009

By The Hazardous Waste Clean-Up Information (CLU-IN)

Enrichment and application of nitrifying activated sludge in membrane bioreactors

In this study, nitrifying bacteria were enriched in a membrane bioreactor (MBR, R1) and their bioaugmentation effectiveness was evaluated in another two MBRs (R2 and R3). Nitrifying activated sludge (NAS) with high nitrification activity of up to 3,000 mg-N/(L·d)−1 was successfully enriched in R1. The results showed that chemical oxygen demand concentration of 100–200 mg/L had no negative ...

Aug. 13, 2017

By IWA Publishing

Treatment of Dense Non-Aqueous Phase Liquids Through Enhanced Bioremediation

ProblemAs a result of trichloroethene (TCE) releases to groundwater during the 1960’s, TCE is now found in the sandy aquifer beneath the Site in the form of a dense, non-aqueous phase liquid (DNAPL). Testing for the vinyl chloride reductase (vcrA) gene (Gene-Trac-VC) and bench scale treatability testing indicated that native Dehalococcoides (Dhc) found at the Site were not uniformly capable of ...

Jun. 22, 2008

By SIREM

Success in the Lab Leads to Success in the Field

Success in the Lab Leads to Success in the Field Superfund Site in Pennsylvania Problem: Degrade TCE in the presence of 1,1,1-TCA They said it couldn't be done. Most strains of Dehaloccoides (Dhc) would not dechlorinate TCE in the presence ...

Jul. 16, 2012

By Bioremediation Consulting, Incorporated

Conducted demonstration projects for bioremediation technologies treating chlorinated organic constituents in the groundwater and soil at Dover Air Force Base

LOCATION: Dover, DelawarePROJECT DATE: July, 1996 to July, 1999CLIENT: The Remediation Technology Development Forum and Dover AFB BACKGROUND: The Remediation Technology Development Forum (RTDF) for Bioremediation of Chlorinated Solvents Work Group has conducted demonstration projects for bioremediation technologies treating chlorinated organic constituents in the groundwater and ...

Dec. 21, 2008

By Terra Systems, Inc. (TSI)

In Situ Biological Treatment for Soil, Sediment, and Sludge

The main advantage of in situ treatment is that it allows soil to be treated without being excavated and transported, resulting in potentially significant cost savings. However, in situ treatment generally requires longer time periods, and there is less certainty about the uniformity of treatment because of the variability in soil and aquifer characteristics and because the efficacy of the ...

Sep. 30, 1997

By Federal Remediation Technologies Roundtable

Ex Situ Biological Treatment for Groundwater, Surface Water, and Leachate

The main advantage of ex situ treatment is that it generally requires shorter time periods, and there is more certainty about the uniformity of treatment because of the ability to monitor and continuously mix the groundwater. However, ex situ treatment requires pumping of groundwater, leading to increased costs and engineering for equipment, possible permitting, and material handling. ...

Dec. 31, 1996

By Federal Remediation Technologies Roundtable

Blending microbes demands gentle touch

Environmental-restoration product manufacturer requires fast, uniform, gentle blending of powdered microbes, enzymes and nutrients The microbial formulations that United-Tech, Inc. produces are used to break down or detoxify a broad array of complex, often-toxic organic compounds, greasy spills and other contaminants in a variety of ...

Dec. 8, 2014

By Munson Machinery Company, Inc.

Ex Situ Biological Treatment for Soil, Sediment, and Sludge

The main advantage of ex situ treatment is that it generally requires shorter time periods than in situ treatment, and there is more certainty about the uniformity of treatment because of the ability to homogenize, screen, and continuously mix the soil. However, ex situ treatment requires excavation of soils, leading to increased costs and engineering for equipment, possible permitting, and ...

Dec. 31, 1996

By Federal Remediation Technologies Roundtable

In Situ Biological Treatment for Ground Water, Surface Water, and Leachate

The main advantage of in situ treatment is that it allows ground water to be treated without being brought to the surface, resulting in significant cost savings. In situ treatment, however, generally requires longer time periods, and there is less certainty about the uniformity of treatment because of the variability in aquifer characteristics and because the efficacy of the process is more ...

Dec. 31, 1996

By Federal Remediation Technologies Roundtable

Results of trials to remove BOD/COD from effluent arising from cellulosic fibre production case study

A man-made natural fibre producer had produced a new high strength, fibrillated cellulosic fibre derived from wood pulp destined for use in garment manufacture. As a result of the IPC authorisation attached to the production of this product it became necessary to establish the biodegradability of various effluent streams leaving the production plant. In order to evaluate the feasibility of ...

May 24, 2011

By Cleveland Biotech Ltd.

Results of trials to remove BOD/COD from effluent arising from cellulosic fibre production case study

A man-made natural fibre producer had produced a new high strength, fibrillated cellulosic fibre derived from wood pulp destined for use in garment manufacture. As a result of the IPC authorisation attached to the production of this product it became necessary to establish the biodegradability of various effluent streams leaving the production plant. In order to evaluate the feasibility of ...

May 28, 2014

By Cleveland Biotech Ltd.

Types of bioremediation and their modes of action

An Urgent Call for Change in U.S. Oil Spill Response With Bioremediation Agent Type EA* bearing out as a workable first response alternative to the use of chemical dispersants, contrasting evidence has become even clearer that dispersant use has been a huge failure. Dispersants have proven to be an inadequate response method with more and more studies showing an ...

Aug. 14, 2012

By OSEI - Oil Spill Eater International, Corp

EPA Technology News & Trends - Tacoma “Well 12A” Superfund Site

The U.S. EPA Region 10 office uses an adaptive site management approach that relies on high-resolution site characterization (HRSC) techniques for strategic sampling at the Well 12A project area. This approximate one-square-mile project area is one of three at the 2.5-square-mile Commencement Bay-South Tacoma Channel Superfund site in Tacoma, Washington. The vicinity of Well 12A, one of 13 wells ...

Jan. 14, 2016

By TRS Group, Inc.

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