ISSN:1747-6585    

DOI:10.1111/j.1747-6593.1988.tb01318.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:1747-6585    

DOI:10.1111/j.1747-6593.1988.tb01319.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:1747-6585    

DOI:10.1111/j.1747-6593.1988.tb01321.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:1747-6585    

DOI:10.1111/j.1747-6593.1988.tb01322.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:1747-6585    

DOI:10.1111/j.1747-6593.1988.tb01323.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:1747-6585    

DOI:10.1111/j.1747-6593.1988.tb01324.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTLegionellaPNEUMOPHILA is a causative agent of respiratory illness in humans. The organism is ubiquitous and commonly frequents aquatic environments. Incidents of legionellosis have been linked with potable water supplies.An attempt has been made to determine the degree of contamination, if any, byL. pneumophilain samples of potable water treated and distributed to domestic premises in the north west of England. Sampling was initiated in February 1986 and continued throughout the summer months of 1986 and 1987. The majority of sampling sites were chosen at random, but from areas suspected of having dirty water problems or low chlorine residuals. In a few cases samples were taken where there was a known problem, such as a consumer complaint or bacteriological failure.Results indicate that public potable water supplied in this area does not constitute a significant health risk in the transmission of the disease. Other environmnental factors appear more significant.

ISSN:1747-6585    

DOI:10.1111/j.1747-6593.1988.tb01325.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTWithinTHE LAST few years there has been a resurgence of UK interest in incineration as a sludge disposal option. However, the last plant installed in the UK represented the technology and design thinking of the 1970s and there have been significant developments since that time. These are reviewed in this paper.Especial attention is given to changes in legislation and attitudes concerning the environmental impact of incineration, and the effects on process selection. The wide range of options for the achievement of autothermic operation are itemized and a brief review of costs given.It is considered likely that incineration will have an increased role in the future, though continuing to be rather specialized. Keeping an open mind on equipment selection is urged, as is the conduct of an organized programme of work to establish process design information before going out to tender.

ISSN:1747-6585    

DOI:10.1111/j.1747-6593.1988.tb01326.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

ABSTRACTThisPAPER DEALS with the performance of trash screens on culverts on urban watercourses. An assessment of the scope of problems associated with screens has been obtained from a survey of land drainage authorities in urban areas in England and Wales. The findings have been analysed and this has resulted in the development of four basic design criteria for screens. A detailed survey of the performance of some 17 sites in the river Ravensbourne catchment of the Thames Water Authority was undertaken over a number of years allowing relationships to be identified between debris amounts and types of upstream catchment area, screen/culvert area ratios, and priority of location.The paper describes considerations to be taken when providing a screen and advocates an individual design for each location rather than installing a standard arrangement. The lack of practical information in the UK, and the high level of problems experienced overall underlines the need for proper consideration to be given to this subject. Current research work is being undertaken to obtain preferred efficient screen configurations, but it is concluded that this should complement rather than replace the need for good trash screen design.

ISSN:1747-6585    

DOI:10.1111/j.1747-6593.1988.tb01327.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:1747-6585    

DOI:10.1111/j.1747-6593.1988.tb01328.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY