de - Beste verfügbare Techniken (BVT) - Umweltbundesamt
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de - Beste verfügbare Techniken (BVT) - Umweltbundesamt

de - Beste verfügbare Techniken (BVT) - Umweltbundesamt de - Beste verfügbare Techniken (BVT) - Umweltbundesamt

bvt.umweltbundesamt.de
von bvt.umweltbundesamt.de Mehr von diesem Publisher
05.01.2013 Aufrufe

Chapter 3 3.2 Waste water The levels given in the following data collection are usually based on daily average values and data sets of a few months up to one year. Elimination rates are obtained from input and output levels to and from the biological WWTP. Where data were not provided, table fields were left empty. 3.2.1 Reported COD and BOD5 emissions and elimination efficiencies Table 3.3 shows the reported COD and BOD5 emissions and the related elimination efficiencies. Most data refer to the treatment of the total effluent biological WWTP, but in individual cases the overall COD elimination may be higher due to pretreatment steps. Such or similar situations are described under “Additional treatments, remarks”. Plant Before treatment COD BOD5 After treatment COD elim. Before treatment After treatment 82 December 2005 BS/EIPPCB/OFC_BREF_FINAL BOD5 elim. Volume flow Additional treatments, remarks mg/l % mg/l % m 3 /d 002A 25000 1500 94 250 Subsequent treatment in municipal plant 003F 3500 130 96 300 Direct discharge to river 004D,O 5000 250 95 150 Nano-filtration for certain optical brighteners, wet oxidation plant, additional municipal plant in planning 007I 4740 350 (peak) Treatment in municipal WWTP 008A,I (2000) 1600 100 94 1100 7 99.4 3800 008A,I (2003) 2500 89 97 1900 5 99.8 3700 009A,B,D (2000) 160 12 93 1 11000 Central activated carbon facility with on-site thermal regeneration for waste water streams containing 009A,B,D (2002) 292 12 96 1 4500 chlorinated nitroaromatics. Overall COD elimination: 96 %, overall AOX elimination 99 % 010A,B,D,I,X (2000) 2580 190 93 1350 6 99.6 41000 010A,B,D,I,X (2003) 2892 184 94 1521 12 99 47500 Stripping of waste water streams from production of C1-CHC, solvent recovery from waste water streams by distillation, Hg removal from waste water streams, precipitation of heavy metals, distillation of waste water streams for solvent recovery, Ni catalyst recycling, since 2001 2-stage WWTP with basins and tower biology. The volume flow includes groundwater treatment.

Plant Before treatment COD BOD5 After treatment COD elim. Before treatment After treatment Chapter 3 BS/EIPPCB/OFC_BREF_FINAL December 2005 83 BOD5 elim. Volume flow mg/l % mg/l % m 3 /d 011X (2000) 4750 220 95 2430 18 99.3 1300 011X (2003) 360 8 1300 012X (2000) 1750 68 96 820 9 98.9 4300 012X (2002) 600 41 93 3.4 8260 013A,V,X (2000) 1740 98 94 890 5 99.4 5750 013A,V,X (2003) 1084 51 95 612 8 98.7 5180 014V,I (2000) 3300 167 95 1400 7 99.5 8000 014V,I (2003) 2660 133 95 1130 7 99.7 8000 015D,I,O,B (2000) 1000 250 75 370 6 98.4 11000 015D,I,O,B (2003) 930 220 77 8 11000 016A,I (1998/1999) 2025 105 95 1500 Additional treatments, remarks Distillation of waste water streams, e.g. from production of light stabilisers, removal of tin-organic compounds from waste water streams Wet oxidation with H2O2 of waste water streams from fungicide production, oxidation of waste water streams containing NaS, concentration of waste water streams containing sulphuric acid, precipitation of Ni Stripping of waste water streams with high concentrations of purgeable AOX and solvents, removal of Ni and Hg Pretreatment of waste water streams from vitamin production in a low pressure wet oxidation plant with 96 % elimination for COD (AOX: 95 %). Concentration by evaporation and incineration of the residues. Removal and recycling of solvents (especially dioxane), extraction from waste water streams, pretreatment by hydrolysis, removal of Zn from exhaust gas (electro filter) before scrubbing Municipal waste water 50 %, central high pressure wet oxidation for waste water streams containing refractory TOC loads (10 % of the volume, 50 % of the total TOC load) with overall TOC elimination of 89 %. Adsorption/extraction of waste water streams from the production of antimicrobica. Central nanofiltration for waste water stream from the production of dyes, optical brighteners and intermediates. Central extraction of waste water streams containing aromatic sulphonates. Stripping of NH3, precipitation of Cu. Data from 1998/99, before plant extension and additional pretreatment

Plant<br />

Before<br />

treatment<br />

COD BOD5<br />

After<br />

treatment<br />

COD<br />

elim.<br />

Before<br />

treatment<br />

After<br />

treatment<br />

Chapter 3<br />

BS/EIPPCB/OFC_BREF_FINAL December 2005 83<br />

BOD5<br />

elim.<br />

Volume<br />

flow<br />

mg/l % mg/l % m 3 /d<br />

011X (2000) 4750 220 95 2430 18 99.3 1300<br />

011X (2003) 360 8 1300<br />

012X (2000) 1750 68 96 820 9 98.9 4300<br />

012X (2002) 600 41 93 3.4 8260<br />

013A,V,X (2000) 1740 98 94 890 5 99.4 5750<br />

013A,V,X (2003) 1084 51 95 612 8 98.7 5180<br />

014V,I (2000) 3300 167 95 1400 7 99.5 8000<br />

014V,I (2003) 2660 133 95 1130 7 99.7 8000<br />

015D,I,O,B (2000) 1000 250 75 370 6 98.4 11000<br />

015D,I,O,B (2003) 930 220 77 8 11000<br />

016A,I (1998/1999) 2025 105 95 1500<br />

Additional treatments, remarks<br />

Distillation of waste water streams, e.g. from production<br />

of light stabilisers, removal of tin-organic compounds<br />

from waste water streams<br />

Wet oxidation with H2O2 of waste water streams from<br />

fungici<strong>de</strong> production, oxidation of waste water streams<br />

containing NaS, concentration of waste water streams<br />

containing sulphuric acid, precipitation of Ni<br />

Stripping of waste water streams with high<br />

concentrations of purgeable AOX and solvents, removal<br />

of Ni and Hg<br />

Pretreatment of waste water streams from vitamin<br />

production in a low pressure wet oxidation plant with<br />

96 % elimination for COD (AOX: 95 %). Concentration<br />

by evaporation and incineration of the residues.<br />

Removal and recycling of solvents (especially dioxane),<br />

extraction from waste water streams, pretreatment by<br />

hydrolysis, removal of Zn from exhaust gas (electro<br />

filter) before scrubbing<br />

Municipal waste water 50 %, central high pressure wet<br />

oxidation for waste water streams containing refractory<br />

TOC loads (10 % of the volume, 50 % of the total TOC<br />

load) with overall TOC elimination of 89 %.<br />

Adsorption/extraction of waste water streams from the<br />

production of antimicrobica.<br />

Central nanofiltration for waste water stream from the<br />

production of dyes, optical brighteners and<br />

intermediates.<br />

Central extraction of waste water streams containing<br />

aromatic sulphonates.<br />

Stripping of NH3, precipitation of Cu.<br />

Data from 1998/99, before plant extension and<br />

additional pretreatment

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