Reynolds Metals Company
The project will focus on beneficial use of municipal wastewater treatment plant residues, both solid and liquid effluents, to accomplish three significant goals.
1. Amendment and vegetation of large areas of historic bauxite tailings.
2. Conservation of fresh water through sequential reuse of wastewater treatment plant liquid effluent as industrial process water.
3. Reduction of municipal solid waste disposed in area landfills.
Reynolds Metal Company has conducted a limited test involving application of treated municipal wastewater plant residues to a tract of historic bauxite tailings totaling 25 acres. All water associated with the residue as well as rainfall and supplied irrigation water was collected and used to supplement the plant process raw water supply.
The environmental potential of this project is substantial. Besides for use of solid and liquid municipal waste, thus freeing up valuable landfill space, water presently used to control dust could be used to expand the local industrial base. In addition to eliminating use of freshwater for dust control, they also recover about 60% of the effluent for use as process water after it leaches through the tailings. The mere presence of vegetation has virtually eliminated the dust.
Details of Reductions
Additional Information :
The two cities involved have averaged saving $50,000 per year I alternative sludge dying, handling and disposal costs.