Nuclear Wastewater Articles on Environmental XPRT

What is Wastewater?

What is wastewater? Wastewater, the waste discharge that first comes to mind in any discussion of stream pollution, is the discharge of domestic wastewater, which contains a large amount of organic waste. Industry also contribute substantial amounts of organic waste, some of which comes from vegetable and fruit packing; dairy processing; meat packing; tanning; processing of poultry, ...

Jan. 12, 2014

By Environmental Services by Daniel L. Theobald

Enhanced biodegradation of oily wastewater through nuclear irradiation mutation and statistical experimental methodology

This study presents the improved biodegradation of crude oil in aqueous phase using mutant Dietzia sp. obtained by random mutagenesis of wild Dietzia sp. using 60Co-γ irradiation. The mutants obtained were screened based on their degradation performance and the best mutant was selected for oil degradation optimization research. A four factor ...

Jan. 21, 2015

By IWA Publishing

Case study - Savannah river nuclear solutions

ENCON’S Evaporators used for decommisioning radioactive waste. The Company: Savannah River Nuclear Solutions, LLC (SRNS) Location: Aiken, South Carolina The Solution: ENCON Thermal Evaporator (20 oil fired systems) Project Timeline: 2009-2012 Savannah River Site (SRS) is located in south-central South Carolina and occupies an area of about ...

Nov. 22, 2014

By ENCON Evaporators

Nuclear Plant in southeastern United States case study

Turning Liquid Waste into Solid Money Savings using QUIK-SOLID© Project Background: A nuclear plant located in southeastern United States had to dispose of approximately 7,000 gallons (26,488 L) of liquid sludge that resulted from aggressive preventive maintenance activities. The plant stored the watery sludge in B-25 boxes (90 ft each). The slightly ...

Feb. 15, 2013

By CETCO

Management of water resources assessment for nuclear power plants in China

To deal with global warming and energy shortages, the nuclear power industry has flourished in China. Operation of a nuclear power plant consumes a large amount of water and discharges radioactive wastewater into nearby water bodies. Therefore, assessment and management of water resources are crucial for such projects. This article proposes the contents, procedures and methods of water ...

Sep. 29, 2015

By IWA Publishing

Case study - Low-flow groundwater sampling on a nuclear site

Nuclear licensed site use of low-flow groundwater sampling shows: Reduced time, reduced quantity of purge water – both thus reducing cost - and reduced risk of operator contact especially with potentially radioactive-contaminated purge water thanks to a self-contained enclosed system. One of the biggest headaches on site is the purge water and the expense of getting rid of it – after ...

Apr. 6, 2016

By Geotech

Remote control dredge prevents contamination at Fernald, Ohio nuclear remediation site

When the operations manager at the Fernald, Ohio Super Fund Site Remedial Action Project needed a dredge to remediate sludge from one of four on-site waste (raffinate) pits, they required more than the usual dredging standards. The dredging operation was complicated with the possibility of unknown radon emissions, chemical contamination, and radiation that could be unleashed as material was ...

Feb. 27, 2010

By Liquid Waste Technology LLC (LWT LLC)

Innovation in radioactive wastewater-stream management: Part one

Treatment of radioactive wastewater streams is receiving considerable attention in most countries that have nuclear reactors. The first Egyptian research reactor ETRR-1 has been operating for 40 years, resulting in accumulation of large quantities of wastewater collected in special drainage tanks called SDTs. Previous attempts were aimed at the volumetric reduction of streams present in SDTs, by ...

Jan. 3, 2006

By Inderscience Publishers

Direct contact membrane distillation for nuclear desalination, Part II: experiments with radioactive solutions

This paper proposes the application of Direct Contact Membrane Distillation (DCMD) coupled with a nuclear reactor for water desalination and for low- and medium-level radioactive liquid waste concentration. Both laboratory and pilot plant experiments were carried out using the membranes reviewed in Part I of this paper. The effects of process parameters on the productivity and quality of DCMD ...

Apr. 11, 2006

By Inderscience Publishers

Thin film composite type positively charged nanofiltration membrane for separation of aqueous streams and nuclear effluents

Thin film composite type positively charged nanofiltration membrane developed by in situ polymerisation of functionalised polyethyleneimine and acid chloride has been used in various aqueous stream separations. The membrane contained fixed quaternary ammonium moieties which contributed to its positive charge. The membrane was tested for its performance in single solute feed systems containing ...

May 19, 2011

By Inderscience Publishers

Lipid profile characterization of wastewaters from different origins

Lipids in wastewaters are potential raw material for renewable diesel, but may complicate biological treatment of wastewaters. The lipid composition of palm oil mill effluent (POME), chemithermomechanical pulp mill (CTMP) wastewater and municipal wastewater (MWW) was studied with a combination of thin-layer chromatography and nuclear magnetic resonance. Gravimetrically determined content of ...

Dec. 13, 2013

By IWA Publishing

Radioactive wastewater treatment using a mixture of TANNIX sorbent and VARION mixed bed ion exchange resin

A wastewater treatment system has been developed by using a mixture of ammonium-insoluble tannin (TANNIX, this is the trademark of an adsorbent made by Mitsubishi Nuclear Fuel Co. Ltd) and mixed (strong acid cation exchanger and strong base anion exchanger) ion exchange resin (MIX) for the selective separation of transuranium isotopes, including Pu, Am, Cm, and U, as well as fission and ...

Dec. 21, 2006

By Inderscience Publishers

Innovation in radioactive wastewater-stream management. Part II: theoretical model and experimental verification

The present work is the second part of the authors' innovative method for radioactive wastewater-stream management, by volume reduction, by a mutual heating and humidification of a compressed dry air introduced through the wastewater. In this part, to determine the optimal operating conditions, a theoretical model describing volume reduction of the radioactive wastewater stream is achieved. A set ...

May 19, 2011

By Inderscience Publishers

KSB - H2O collaboration project: Reduce costs and improve quality of industrial wastewater treatment

A Clearcat evaporator at KSB in La Roche Chalais (France) for the treatment of industrial wastewater on site. The KSB factory at La Roche Chalais (24), a subsidiary of Germany's KSB AG, manufactures AMRI brand butterfly valves. These valves are used in the construction, industrial, water, and electric power generation sectors. The production of these valves generates two main liquid wastes: ...

Dec. 1, 2014

By H2O GmbH

On the removal of silver and antimony radionuclides from radioactive liquid waste by some classical means

After partial upgrading of a research reactor at the Pakistan Institute of Nuclear Science and Technology, Islamabad, some waste effluents having 110mAg and 124Sb with higher activity levels than the disposal limits piled up because the waste storage capacity was not yet enhanced. Experimental work was conducted to arrive at some optimum procedure for the treatment of the waste to ensure smooth ...

Feb. 7, 2008

By Inderscience Publishers

Selection and design criteria of supported liquid membrane for the treatment of rad-waste

Supported Liquid Membrane (SLM) is an emerging trace metal pre-concentration technique. It has the ability to decontaminate radionuclides even from lean secondary effluent. SLM can be considered as a part of process intensification, which implies a closed loop operation. It has reduced space requirement as well as minimised secondary effluent generation and the number of unit steps. Proper ...

May 19, 2011

By Inderscience Publishers

Case study - Dansk Dekommisionering

Cost effective and environmentally correct handling of radioactive wastewater Client: Dansk Dekommissionering, formerly known as Forskningscenter Risø. The Institution Dansk Dekommissionering was established in September 2003 with the purpose of taking over the responsibility for the nuclear facilities at the Risoe Research Centre. ...

Jun. 17, 2016

By Envotherm A/S

Leading military electrical connector manufacturer - case study

Application The client designs and builds complex electrical connectors for salt water applications. The connectors are used in underwater communications cables and to make solid electrical connections within nuclear submarines. Each connector is housed in a durable waterproof rubber material with gold and platinum plated eluctors to optimize electrical conductivity and decrease ...

Nov. 9, 2013

Sorption kinetic studies using metal chelate embedded polymers for recovery of heavy metals from desalination effluents

The heavy metals, such as uranium and vanadium, are some of the valuable metals in desalination effluents. Metal Chelate Embedded Polymers (MCEP) in leaflet form were prepared using the post-irradiation induced graft polymerisation technique, with different non-woven thermally bonded fibrous substrate materials. The novel sorbents, synthesised by using accelerator energy beams of 1.25 MeV and 2 ...

May 19, 2011

By Inderscience Publishers

Need a swifter, safer way to mop up toxic waste? Blue goo may do.

Scouring radioactive waste usually means just that. Scrub with soap and water, pails and brushes. Repeat. If it sounds messy, it is—and dangerous too for those exposed to dust and contaminated wastewater. Hawaii-based CBI Polymers says it's come up with a better way to clean up nuclear waste. The firm's blue goo may not look high-tech; all you do is pour it. But as the superabsorbent ...

Dec. 7, 2011

By KT Chemicals, Inc.

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