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| Sunday, 26 March 2006 |
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Business |  |
| News Business Features Editorial
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Hydro Systems at Czech exhibition Czech Enterprise, 2006 Exhibition for Small and Medium Enterprises was held last week at the BMICH. It was organised by the Ceylon Chamber of Commerce, in collaboration with the Economic Chamber of the Czech Republic under the patronage of the European Commission. Sixty Sri Lankan companies, representing the Rubber, Energy and Environmental Technology sectors and 22 Czech Enterprises, with matching business interest participated. Three Senior State Officials from the Czech Republic, representing the Ministries of Foreign Affairs and Trade and Industry, were members of the official delegation. This demonstrated the significance of the Government of the Czech Republic attached to this event and to the development of business co-operation with Sri Lanka. Wastewater/Sewage Treatment - Zero Sludge, disposal of sludge has became a problem via drying beds due to space required for stockpile and the bad odour it emanates during the rainy seasons. Engineer, Hydrosystems, International (SL), Tissa Meepe said they developed a Sequence Batch Reactor S B R continuously rated - Zero Sludge system. "Our first SBR system was for printing ink manufacturing factory 35 m3 capacity where the wastewater had a COD level of over 13,000 mg/l. The chemical treatment could not bring it down less than 2400 mg/ l. They had another problem of overflowing soakage pits and septic tanks, he said. The challenge was to bring the COD down to 250 mg/l and reusing the treated sewage after reducing the BOD to 30 mg/l from 300 mg/l and the suspended solids from 300 mg/l to 50 mg/l. We got chemically treated wastewater and the sewage to one tank to incite bio degradation and achieved COD 75 mg/l BOD 20 mg/l SS 10 mg/l. This wastewater is used to irrigate the lawn and the flower beds after disinfection, Meepe said. Hydro system which played a major role have other treatment plants for Hotel 65 rooms (irrigation system installed), Garment Factory 1,500 staff [irrigation system to be installed] and School 1,000 students [to be commissioned]. We are in the process of designing a system for township of 7,000 people, he said. |
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