Distillieries - Environmental Clearance

Distilleries- Cooling water- Waste wash water- Water treatment plant wastewater- Boiler blow down- Bottling plant wash wastewater- Other wastesTable 3-4 gives the process waste streams quantity for 16 distilleries. Also indicated inthe table is whether the spent lees is recycled or not. A typical analysis of spent washwith ranges is indicated in Table 3-5, and Table 3-6 gives a typical analysis of thefermenter sludge.Table 3-4: Process Stream Discharge from Distilleries Based on MolassesS.NoManufacturingProcessUnitFermenterSludgeSpentwashSpentleese1. Batch kL per kLR.S2. Continuous kL per kLR.S3. Biostil kL per kLR.SNote:0.03 14 - 15 1 – 1.50.01 -0.015 10 -12 1 – 1.50.005 – 0.008 07 - 09 0.5 – 1.0Spent leese are recirculated depending on the end use of R.STable 3-5: Characteristics of Spent WashS. No. Characteristics Range1 pH 4.3-5.32 Total Solids 60,000-90,0003 Total Suspended Solids (TSS) 2,000-14,0004 Total Dissolved Solids (TDS) 67,000-73,0005 Total Volatile Solids (TVS) 45000-650006 COD 70000-980007 BOD 45000-600008 Total Nitrogen as (N) 1000-12009 Potash as (K 2 O) 5000-1200010 Phosphate as (PO 4 ) 500-150011 Sodium as (Na) 150-20012 Chlorides as (CI) 5000-800013 Sulphates as (SO 4 ) 2000-500014 Acidity as (CaCO 3 ) 8000-1600015 Temperature (After Heat Exchange) 70 O C-80 O CSource: COINDS for Fermentation Industry, CPCBTGM for Distillery Industry 3-10 August 2010