This article throws light upon the three ways of treatment of industrial effluents. The ways are: 1. Primary Treatment 2. Secondary Treatment 3. Tertiary Treatment. Way # 1. Primary Treatment: It is of general nature and is used for removing suspended solids, odour, colour and to neutralize the high or low pH. It involves methods of: (i) Screening (ii) Neutralization [...]
In this article we will discuss about the water intensive industries. Major Water Intensive Industries: (i) Tanneries: The various processes employed at tanneries are: (a) Soaking (b) Liming and removal of hair, (c) De-liming; (d) Bating (e) Pickling (f) Tanning (vegetable and chrome) and (g) Finishing (fat liquoring and dyeing). The quantity of waste-water let out from Indian tanneries works [...]
This article throws light upon the eleven parameters to be determined for the analysis of industrial effluents. The parameters are: 1. D. O. (Dissolved Oxygen) 2. Temperature 3. Odour 4. Turbidity 5. pH 6. Nonfiltrable (Suspended) Solids 7. Colour 8. Ammonia 9. Hardness 10. Humidity Meter 11. Velocity Meter. Parameter # 1. D. O. (Dissolved Oxygen): (I) Since the DO [...]