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| Products/Industrial Waste Water Treatment |
UNIHA Water Treatment Process |
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involves removal or recovery of waste water constituents harmful to
any specific point of disposal and to environment in general.
Domestic,community and many sorts of industrial waste water are treated by biological
purification process, whereas many other industrial wastes have to be purified
by physical/chemical treatment methods.
For biological treatment process,
there are at least eight typical models, plus some conventional modifications
for these models. |
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Waste Water Quality
Waste water constituents are typi-cally classified under:
Coarse and fine particles - sand - oil/fat - suspended solids, which mostly are settleable - BOD, COD-nitrogen and phosphorous contents - microorganisms - specific parameters, like pH, heavy metals, CN etc. |
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| Source |
Characteristics |
Treatment |
| Food Industries
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| Breweries |
high nitrogen and carbohydrates |
biological treatment, recovery, animalfeed |
| Canneries |
high solids and BOD |
screens, lagoons, irrigation |
Dairies
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high fat, protein, and carbohydrate |
biological treatment |
Fish
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high BOD, odour |
evaporation, burial, animal feed |
Meat processing
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high protein and fat (may be warm) |
screens, Sedimentation, flotation, biological treatment |
| Pickles |
high BOD, high or low pH. high solids |
screening, flow equalisation, biologicaltreatment |
| Soft drinks |
high BOD and solids |
screening, biological treatment |
| Sugar |
high carbohydrate |
lagoons, biological treatment |
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| Chemical Industries |
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| Acids |
low pH, low organics |
neutralisation |
| Detergents |
high BOD and phosphate |
flotation, precipitation |
| Explosives |
high organics and nitrogen.
trinitrotoluene |
chlorination or TNT precipitation |
| Insecticides |
high organics, toxic to biological
Systems |
dilution, adsorption, chlorination at high pH |
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| Material industries |
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| Foundries |
high solids (sand. clay, and coal) |
screens, drying |
| Oil |
dissolved solids, high BOD. odour.
phenols |
injection, recovery of oils |
| Paper |
variable pH, high solids |
Sedimentation, biological treatment |
| Plating |
acid, heavy metals, cyanide
toxic to biological Systems |
neutralisation, |
| Rubber |
high BOD and solids. odour |
biological treatment |
| Steel |
low pH, phenols, high suspended solids |
neutralisation, coagulation |
| Textiles |
high pH, and BOD, high solids |
neutralisation, precipitation, biological treatment |
| sssssss ssss ssssssssssss ssssss ssssss ssss ssss ss ssss sssssss ssssssss ssssssssssssssssssssssssss ssssssssssssssss sss ssssss ssssssss ssssssssssssssssssssss s s s ssss ssss sssss s sssss s sss s s s s s ssssssssssssssssssss s s s s s s s s s s s s s |
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