- Email: [email protected]
Advanced water treatment service
Marine Pollution Bulletin grey seals from Liverpool Bay. The evidence that PCB pollution may induce sterility comes from the Baltic,
Helle,E. (1980). Lowered reproductive capacity in female ringed seals (pusa hispida) in the Bothnian Bay, northern Baltic Sea, with special reference to uterine occlusions.Ann. zool. Fennici 3,183-189. where Helle (1980) found uterine occlusions or stenosis Holden,A. V. & Topping, G. (1981). Report on further intercalibration in more than 40% of sexually mature female ringed analysesin ICES pollution monitoring and baseline studies. ICES seals ( P h o c a hispida) which he examined between 1975 Coop. Res. Rep. 108. Holden, A. V. Topping, G. & Uthe, J. F. (1983). Use and relevance of and 1979. The incidence a m o n g U K seals is strikingly analytical intercomparison exercises in monitoring the marine lower than this. environment. Can. J. Fish. Aquat. Sci. 40, (Suppl. 2), 100-110. Oehme, M., Furst, P., Kruger, C., Meemken, H. A. & Groebel, W. (1988). Presence of polychlorinated dibenzo-p-dioxins, dibenzofurans and pesticides in the Arctic seal from Spitzbergen. Chemosphere 17, 1291-1300. Anon. (1983). Report of the ICES working group on Baltic seals. ICES Topping, G. & Holden, A. V. (1978). Report on intercalibration CM 1983/N:3. analyses in ICES North Sea and North Atlantic baseline studies. Anon. (1988). Report of the ICES advisory committee on marine polICES Coop. Res. Rep. 80. lution, 1987. ICES Coop. Res. Rep. 150. Uthe, J. F. & Musial, C. J. (1982). Report on the fourth ICES interBaker, J. R. (1989). Pollution associated uterine lesions in grey seals calibrationstudy of PCBs in biological material. ICES Coop. Res. from the Liverpool Bay area of the Irish Sea. Vet. Rec. 125,303. Rep. 115. Boyd, I. L. (1985). Pregnancy and ovulation rates in grey seals (Hali- Uthe, J. F. & Musial, C. J. (1986). Summary report of the fifth interchoerus grypus) on the British coast. J. Zool. Lond. (A) 205, 265comparisonexercise on the determination of organochlorine resi272. dues in fish oil (5/OC/BT). ICES Coop. Res. Rep. 136.
Advanced Water Treatment
obtained by telephoning Peter Cook, Managing Director of Esmil on 0494-44643 5 (UK).
A new joint venture c o m p a n y formed by Yorkshire Water and the Netherlands-based Hoogovens Group, is offering treatment techniques for industrial process water and effluent. The new company, Esmil, will provide a full range of problem-to-solution services extending from on-site analysis, feasibility studies and plant design, to process engineering, project management, operation, and maintenance, The company's operations will be supported by the research, development, and laboratory back-up facilities of its joint owners. Esmil hopes to gain a significant share of the d e m a n d from industry for specialized water treatment. A m o n g s t the target markets so far identified are the production of ultra-pure water for the electronics industry, supply of uninterrupted high grade water to the pharmaceutical industry, and dealkalization and demineralization services for various engineering processes, Further technologies on offer will be anaerobic biological treatment of effluent, desalination of brackish water through m e m b r a n e separation, and waste water treatment for flue gas desulphurization plants. More information on the company's operations can be
Filter for River Water Analysers
Service
584
A system for prefiltering river waters prior to on-line measurements for nitrates and other inorganic cornponents is available from Ionics. The S A M P R E P II can be used with most manufacturers' monitors, providing an uninterrupted sample flow. It consists of a proprietary crossflow m e m b r a n e filter which removes particles down to 0.5 ~tm, including bacteriological matter. The filter is easy to clean. The operator simply redirects the sample to a stand-by filter module while he cleans the one in use. S A M P R E P II has a maximum internal pressure of 80 psi and can operate on samples in temperatures to 95"C. A minimum sample flow of 12-15 1 rain - t generates a filtrate flow rate 100-300 ml rain -1. The filters are already finding increasing use by the process industries and water authorities. Thames Water Authority have recently installed a S A M P R E P II analyser to filter water prior to analysing for nitrates. Further details from Ionics U K Limited, Carrington Business Park, Carrington, Urmston, Manchester M31 4DD, UK.
Helle,E. (1980). Lowered reproductive capacity in female ringed seals (pusa hispida) in the Bothnian Bay, northern Baltic Sea, with special reference to uterine occlusions.Ann. zool. Fennici 3,183-189. where Helle (1980) found uterine occlusions or stenosis Holden,A. V. & Topping, G. (1981). Report on further intercalibration in more than 40% of sexually mature female ringed analysesin ICES pollution monitoring and baseline studies. ICES seals ( P h o c a hispida) which he examined between 1975 Coop. Res. Rep. 108. Holden, A. V. Topping, G. & Uthe, J. F. (1983). Use and relevance of and 1979. The incidence a m o n g U K seals is strikingly analytical intercomparison exercises in monitoring the marine lower than this. environment. Can. J. Fish. Aquat. Sci. 40, (Suppl. 2), 100-110. Oehme, M., Furst, P., Kruger, C., Meemken, H. A. & Groebel, W. (1988). Presence of polychlorinated dibenzo-p-dioxins, dibenzofurans and pesticides in the Arctic seal from Spitzbergen. Chemosphere 17, 1291-1300. Anon. (1983). Report of the ICES working group on Baltic seals. ICES Topping, G. & Holden, A. V. (1978). Report on intercalibration CM 1983/N:3. analyses in ICES North Sea and North Atlantic baseline studies. Anon. (1988). Report of the ICES advisory committee on marine polICES Coop. Res. Rep. 80. lution, 1987. ICES Coop. Res. Rep. 150. Uthe, J. F. & Musial, C. J. (1982). Report on the fourth ICES interBaker, J. R. (1989). Pollution associated uterine lesions in grey seals calibrationstudy of PCBs in biological material. ICES Coop. Res. from the Liverpool Bay area of the Irish Sea. Vet. Rec. 125,303. Rep. 115. Boyd, I. L. (1985). Pregnancy and ovulation rates in grey seals (Hali- Uthe, J. F. & Musial, C. J. (1986). Summary report of the fifth interchoerus grypus) on the British coast. J. Zool. Lond. (A) 205, 265comparisonexercise on the determination of organochlorine resi272. dues in fish oil (5/OC/BT). ICES Coop. Res. Rep. 136.
Advanced Water Treatment
obtained by telephoning Peter Cook, Managing Director of Esmil on 0494-44643 5 (UK).
A new joint venture c o m p a n y formed by Yorkshire Water and the Netherlands-based Hoogovens Group, is offering treatment techniques for industrial process water and effluent. The new company, Esmil, will provide a full range of problem-to-solution services extending from on-site analysis, feasibility studies and plant design, to process engineering, project management, operation, and maintenance, The company's operations will be supported by the research, development, and laboratory back-up facilities of its joint owners. Esmil hopes to gain a significant share of the d e m a n d from industry for specialized water treatment. A m o n g s t the target markets so far identified are the production of ultra-pure water for the electronics industry, supply of uninterrupted high grade water to the pharmaceutical industry, and dealkalization and demineralization services for various engineering processes, Further technologies on offer will be anaerobic biological treatment of effluent, desalination of brackish water through m e m b r a n e separation, and waste water treatment for flue gas desulphurization plants. More information on the company's operations can be
Filter for River Water Analysers
Service
584
A system for prefiltering river waters prior to on-line measurements for nitrates and other inorganic cornponents is available from Ionics. The S A M P R E P II can be used with most manufacturers' monitors, providing an uninterrupted sample flow. It consists of a proprietary crossflow m e m b r a n e filter which removes particles down to 0.5 ~tm, including bacteriological matter. The filter is easy to clean. The operator simply redirects the sample to a stand-by filter module while he cleans the one in use. S A M P R E P II has a maximum internal pressure of 80 psi and can operate on samples in temperatures to 95"C. A minimum sample flow of 12-15 1 rain - t generates a filtrate flow rate 100-300 ml rain -1. The filters are already finding increasing use by the process industries and water authorities. Thames Water Authority have recently installed a S A M P R E P II analyser to filter water prior to analysing for nitrates. Further details from Ionics U K Limited, Carrington Business Park, Carrington, Urmston, Manchester M31 4DD, UK.