Title: Modification Test of Low Turbidity Raw Water for Mechanical Accelerated Clarification Basin
Abstract: Raw water of Guangning Power Plant in Vietnam is surface water with low turbidity( 8- 10 NTU). Three sedimentation tanks have been designed individually to provide output water-amount of 200 m3/ h and output water-turbidity no more than 3NTU. The original coagulant and coagulant aid applied are aluminum sulphate,and PAM,respectively. The output water system is controlled at a turbidity of 3 ± 0. 5 NTU and a maximum water-amount of 360 m3/ h which presented a low efficient clarifying process. However,in this report,by modification of the clay consisting of activated sludge solid,changing the coagulant with PAC at a amount of 10 mg / L and adjusting the coagulant aid concentration to 0. 5 mg / L,an efficient output water system has been achieved with a turbidity down to 1 NTU and a total output water-amount up to 600 m3/ h.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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