STRIAL NEWS Cost saving recycling electroplaters
process
A new method for extracting and recycling metals from electroplating operations aims to help small businesses save money by reducing the amount of waste metal they must send to landfills. With this new method, it is estimated that the typical small electroplating company could save up to $200 000 a year in waste disposal costs. The process is under development by the US Department of Energy’s Argonne National Laboratory in collaboration with two Illinois companies: Eichrom Industries Inc., Darien, a metals separations technology company, and Wayne Circuits, Yorkville, a printed circuit board manufacturer that conducts various electroplating processes. The work is being developed under a two-year, $125 000 joint research project. The process uses commercially available chemicals to recovery metals such as copper, tin and lead from aqueous solutions generated during
Filter range now covers The CK range of high efficiency filters manufactured by UK based Health and Safety (Engineering) Ltd has now been extended to include smaller units designed specifically for silo venting applications. These flange mounted filters are designed for use in silos fitted with either pneumatic or belt conveyor feeders and enclosed conveyor transfer points to maintain a safe dust-free environment. The range covers flow capacities from 0.5 to 5.0 m3/sec. Air is drawn through pleated cartridge filter elements and discharged to the atmosphere with a filtration efficiency of up to 99.95%. Different filter media including
for
electroplating operations. It is expected to be more than 99% efficient in recovering metals. The process will not eliminate waste entirely but will significantly reduce its volume. Wayne Circuits anticipates its liquid wastes will drop from about 200 000 gallons a year to 16 000. In addition to extracting metals, the system will also recycle water. The three-way collaboration between Eichrom, Argonne and Wayne Circuits is a “cooperative research and development agreement” (CRADA) CKADAS are designed to foster cooperative research between industry and government labs in the US, by offering streamlined government approval, protection of joint data, and advantageous rights to patents and other intellectual property from the joint research. Argonne National Laboratory, 9700 South Cass Awe, Argonne, IL 60439; Tel: + 1 708 252 2000; fax: + 1 708 252 5274.
silo venting paper, cellulose and polyester are supplied to cover a range of dusts and operating conditions. The dust collected on the outer filter surface is periodically removed with a reversed jet of compressed air. The dislodged dust falls back into the silo or onto the feed conveyor. The filter cartridge assemblies can be easily accessed for periodic inspection or replacement. They are contained within a weatherproof housing which also incorporates the controls for the fan and pneumatic cleaning equipment. Health and Safety (Engineering) Ltd, 1 Cannock Street, Troon Industrial Area, Leicester LE4 9HR, UK Tel:+ 44 116 2740888, fa: + 44 116 2330888.
Refinery
first for Vitox
BOG Gases has secured the order to install equipment in an expansion to the effluent treatment plant at Conoco’s Humber refinery, UK. This will be the first oil refinery treatment plant based on the Vitox pure oxygenation system and will upgrade current facilities to meet both future legislation and Conoco’s own environmental goals. Potential pollutants from the Humber refinery include hydrocarbons, ammonia sulphide and phenols. The free hydrocarbons can be removed by mechanical means, but the most effective treatment for the other effluent contaminants is biological. The plant itself will consist
Micro-electronics
of a 12 000 m3 equalisation tank and two 4500 m3 activated sludge reactors in parallel. On each tank will be two 5 tonne per day Vitox units; which will enable one of the activated sludge reactors to handle the normal effluent load on its own in the event of the other shutting down, Conoco is purchasing the equipment from BOC over a three year period, during which time BOC will maintain all equipment and pipework associated with the oxygen supply. BOC Gases, The Priestley Centre, 10 Priestley Road, The Surrey Research Park, Guildford, Surrey GU2 5xU, UK. Tel: + 44 1483 579857; fax: + 44 1483 244658.
contract
Elga Limited has been awarded a major micro-electronics contract for a water purification plant at Analog Devices BV, Limerick, Ireland. Worth 21.5 million, the order was placed through the main contractors, John Sisk & Son Ltd and included the design, manufacture, installation, commissioning and validation of a multiple-technology water purification system producing water with impurity levels at the detection limits. The system comprises of multi-media, activated carbon, organic removal and base-exchange softening; primary and secondary reverse osmosis;
NNC wins f17 million
for Elga
mixed-bed deionisation; microfilters, ultrafilters, and ultraviolet sterilisers, together with pipework, storage and monitoring equipment. All the major items of equipment were custom-designed by Elga to meet the rigorous water specifications at Analog Devices’ new microeiectronics production facility. The system will provide ultrahigh-purity rinse water used in the manufacture of microchips from six-inch silicon wafers. Elga Ltd, Htgh Street, Lane End, High Wycombe, Buckinghamshire, UK, HP14 3SH. Tel: + 44 1494 881393, fax: +44 1494 881007.
UKAEA contract
NNC Limited has been awarded a 217 million contract by UKAEA (United Kingdom Atomic Energy Association) Government Division for work on its Dounreay site in Caithness in the Scottish Highlands. The contract - part of the nuclear decommissioning programme for the Dounreay Prototype Fast Reactor - is for a liquid metal disposal plant, along with the systems to transfer liquid metal to it horn various storage areas of the PFR The contract, will span six years. NNC believe that the contract is the largest decommissioning project of its type awarded to date in Britain. The project will cover designing, installing, commissioning and operating the liquid metal disposal plant - plus
October
the eventual de-commissioning once disposal has been achieved. Work will start in November, with completion due in 2001. Sub-contractors involved in the project will include AEA Technology, which already has a well-established base at Dounreay, and Framatome of France - NNC partners in the European Fast Reactor programme. The UK Government’s Department of Trade and Industry plans to spend some 5.500 million on decommissioning at Dounreay over the next 10 years, with additional work extending further into the next century. NNC Limited, Booths Hall, Ch.elford Road, Knutsfo?d, Cheshire, UK, WA16 SQZ. Tel: i- 44 15565 633800, fbx: +44 1565 621043.
1995
Filtration
& Separation