Perchlorate, Arsenic


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System for perchlorate in groundwater demonstrated

A demonstration system for the degradation of perchlorate, which minimises production of a secondary waste system such as that from ion‑exchange, has been installed at Aerojet General Corporation's site near Rancho Cordova in California, USA.

BIOBROx bill passes US House committee

The United States House of Representative's Committee on Natural Resources approved on 11 September 2009 Magna Water District Water Reuse & Groundwater Recharge Act of 2009 (HR 2265) proposed by Representative Jason Chaffetz.

EDR/MBR well treatment may debut in Utah

A membrane bioreactor (MBR) system, developed and patented in 2008 by Magna Water District (MWD), in the US state of Utah, and Carollo Engineers, could be used for the first time together with an electrodialysis reversal (EDR) facility to remove perchlorate and arsenic from the Barton Well Field in Utah.

Study shows novel heavy-metals-from-wastewater method

Scientists in Singapore and Saudi Arabia have reported a novel method for extracting toxic and valuable heavy metals from wastewater using forward osmosis (FO).

Ionizable hydrophobes behind new IBM desalination membrane

US computer giant IBM, Tokyo-based Central Glass and the King Abdul Aziz City for Science & Technology (KACST) unveiled a novel desalination membrane technology at the World Water Forum in Turkey on 16 March 2009.

Perchlorate decision could be good for RO

The US Environmental Protection Agency (USEPA) is backtracking on a decision made under the Bush administration not to regulate the chemical perchlorate in drinking water.

Arlington Desalter

Desalination plant's nitrate removal has hidden benefits

A water district in California has found a novel way to remove multiple contaminants from groundwater currently feeding a desalination plant without creating waste that requires costly treatment and disposal.

USEPA chief briefs Senate on dangerous contaminants

Perchlorate, chromium-6 and volatile organic compounds (VOCs) in drinking water were all discussed by the US Environmental Protection Agency's administrator, Lisa P Jackson, in testimony before the Senate Committee on Environment & Public Works on 2 February 2011.

The Aquatech process

Aquatech prepares membrane-thermal ZLD for Columbia gold mine

The new hybrid membrane-thermal system is to be installed in April and commissioning is expected to be completed by Q4 2019.

Q&A: AMTA president Brent Alspach on why the need for membranes has never been more acute

In the week of the AMTA/AWWA Membrane Technology Conference 2018, in Florida, US, Brent Alspach, president of AMTA and director of applied research at Arcadis, outlines the water challenges and how current and in-development membrane-based treatments are addressing them.

USEPA nears decision on perchlorate water standard

The US Environmental Protection Agency (EPA) is in the process of making a final decision on whether to set a drinking water standard for perchlorate.

Mott MacDonald absorbs Australasian water specialist

The Mott MacDonald consultancy group has taken in AWT, a specialist water technology and consulting company based in New Zealand and Australia.

SWMOA New Mexico/Colorado workshops in April

The Southwest Membrane Operator Association (SWMOA) is holding two membrane operator training workshops in New Mexico and Colorado in April 2012.

Desalination help published with WHO drinking water standards

The World Health Organization launched the 4th edition of its Guidelines for Drinking-Water Quality (ISBN: 978 92 4 154815 1) at the Singapore Water Week on 4 July 2011 - and also launched a separate guide for desalination.

CDA/EDS seeking Qingdao desalination abstracts by 15 March

Abstracts for the 2011 Qingdao International Desalination Conference in China (20-23 June 2011) must received by 15 March 2011 with final papers by 10 May 2011.

US powerplant water emission rules to be tightened, say environmentalists

The US Environmental Protection Agency (EPA) is to tighten up on water emissions from powerplants, according to a press release from a collection of US environmental groups.

PoU reverse-osmosis planned for US city's households

The City of Andrews, USA, is likely to submit a proposal to the Texas Commission on Environmental Quality (TCEQ) at the end of this year for installation of point-of-use (PoU) reverse-osmosis (RO) water treatment on 4,500 city homes.

MD developer seeking US powerplant partners

Swedish membrane distillation (MD) manufacturer Scarab AB is seeking US powerplant operators to allow it to demonstrate the technology's ability to convert waste streams to feedwater using waste heat from turbines and engines.

EPA funding for Arlington Desalter's biological denitrification

California's Western Municipal Water District (WMWD) confirmed on 10 February 2011 that it had secured a US$ 528,000 federal grant in January for design work on a treatment system that uses naturally occurring bacteria to remove toxic contaminants, including perchlorate and nitrate, from drinking water.


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