Common Facility Treatment of Industrial Wastewaters
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The Gulf Coast Waste Disposal Authority concentrates on the disposal of wastewater, both municipal and industrial, and on the disposal of industrial solid wastes. The range of authority spans three counties, Chambers, Galveston, and Harris. Wastes from various sources are combined in different ways but treated at the same facility. In addition to industrial wastes the authority operates 26 municipal plants, seven of which are centralized for joint treatment. A case history of the Washburn Tunnel Facility is presented as an example of the process of developing a joint waste treatment program. The advantages of the joint approach to treatment include tax-free capital investment, ad-valorem tax exemption, sales tax-free purchases, savings in chemical costs, and the elimination of multiple laboratory functions. At the Washburn Tunnel Facility secondary treatment is provided for up to 52 mgd. This represents one-third of the industrial biological demand produced by Houston Ship Channel Industries. The activated sludge process removed 95% of the biochemical oxygen demand and 90% of suspended solids coming into the plant. Organic pollutants are brought into contact with bacteria and converted to harmless carbon dioxide, water and more bacteria. Regional waste treatment faciliies can work and yield a cost effective program for joint industrial waste treatment through careful planning and attention to detail. (Baker-FRC)
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