0 water that is not clean because it has already been used in homes, businesses, factories, etc.: --
1 water that is not clean because it has already been used in homes, businesses, factories, etc.: --
Large areas were flooded with over 5 million cubic metres of contaminated hazardous waste water from mining operations when a retaining dam burst.
The reduced precipitation of zinc and copper relative to sulfur when iron was added to the waste water indicated that metal sulfides accumulated only partly as zinc and copper sulfides.
Households therefore did not use the quantities of water that they were to do later, and human waste was mainly disposed of separately from waste water.
The potable and waste water systems of the hotel were reviewed to identify opportunities for contamination of the potable water system and deficiencies in the management of these systems.
The speciation and subtyping of campylobacter isolates from sewage plants and waste water from a connected poultry abattoir using molecular techniques.
Apart from this effect, no other significant effects attributable to the addition of sulfate to the waste water were observed in the sequential extractions.
Iron-supplemented waste water was fed throughout the experiment and sulfate addition started after 5 days, as indicated by the vertical dashed line.
The treatment plant serves approximately 22 000 person-equivalents and the waste water is without industrial inputs.
