5.123. Preparatory work continued on the planned improvements to the sewerage districts of Hong Kong Island. Tenders were invited for the supply of pipes and specials and contract drawings and documents were prepared for the construction of the Wan Chai (West) submarine outfall. Design work on the incoming sewers to the proposed Wan Chai (West) sewage screening plant continued, while preliminary investigations for the Wan Chai (East) submarine outfall were started.
5.124. For the planned improvements to the Kowloon sewerage districts, contract drawings and documents were prepared for the Yen Chow Street submarine outfall and sewage screening plant and detailed design work for the Lai Chi Kok outfall was carried out.
Studies and Investigation
5.125. Technical reports on the proposed sewage disposal system for Castle Peak New Town were prepared. These included a general functional and hydraulic design of the system comprising a long trunk sewer, pumping station, preliminary treatment facilities and a submarine outfall. Another report dealt with the condition of the existing sewage treatment plant in Queen's Hill Camp with the view to improving the sewage effluent discharged.
5.126. Studies of particular sewerage problems, such as providing air bubble barriers to prevent pollution of swimming beaches, and the possibility of using surface aerators and chemicals to alleviate odour problems in Kowloon Bay, were started.
5.127. Analysis of data obtained from gauging of sewers provided information on the quantities of sewage discharged per capita per day and the characteristics of sewage flow for checking and up-dating design criteria.
5.128. Preliminary discussions were held with consulting engineers for the construction and operational studies of the Shek Wu Hui sewage pilot plant. This plant will be the first sewage treatment works of this type to be constructed in the Colony. It will enable biological treatment for sewage disposal under local conditions to be studied.
5.129. Hydrological surveys of Victoria and Tolo harbours were started at the beginning of March 1969 and are being undertaken in association with the consulting engineers, Messrs. J. D. and D. M. Watson. The object of these surveys is to investigate and to assess the effects of the disposal of sewage into these water bodies.
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5.123. Preparatory work continued on the planned improvements to the sewerage districts of Hong Kong Island. Tenders were invited for the supply of pipes and specials and contract drawings and documents were prepared for the construction of the Wan Chai (West) submarine outfall. Design work on the incoming sewers to the proposed Wan Chai (West) sewage screening plant continued, while preliminary investiga- tions for the Wan Chai (East) submarine outfall were started.
5.124. For the planned improvements to the Kowloon sewerage districts, contract drawings and documents were prepared for the Yen Chow Street submarine outfall and sewage screening plant and detailed design work for the Lai Chi Kok outfall was carried out.
Studies and Investigation
5.125. Technical reports on the proposed sewage disposal system for Castle Peak New Town were prepared. These included a general functional and hydraulic design of the system comprising a long trunk sewer, pumping station, preliminary treatment facilities and a submarine outfall. Another report dealt with the condition of the existing sewage treatment plant in Queen's Hill Camp with the view to improving the sewage effluent discharged.
5.126. Studies of particular sewerage problems, such as providing air bubble barriers to prevent pollution of swimming beaches, and the possibility of using surface aerators and chemicals to alleviate odour problems in Kowloon Bay, were started.
5.127. Analysis of data obtained from gauging of sewers provided information on the quantities of sewage discharged per capita per day and the characteristics of sewage flow for checking and up-dating design criteria.
5.128. Preliminary discussions were held with consulting engineers for the construction and operational studies of the Shek Wu Hui sewage pilot plant. This plant will be the first sewage treatment works of this type to be constructed in the Colony. It will enable biological treatment for sewage disposal under local conditions to be studied.
5.129. Hydrological surveys of Victoria and Tolo harbours were started at the beginning of March 1969 and are being undertaken in association with the consulting engineers, Messrs. J. D. and D. M. WATSON. The object of these surveys is to investigate and to assess the effects of the disposal of sewage into these water bodies.
66
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