SUCHE

Purification values achieved at ebswien hauptkläranlage

January to September 2018

ParameterEfficiency [%]Outlet concentration [mg/l]
 ebswien
hauptkläranlage
Minimum efficiency
according to 1st AEV
ebswien
hauptkläranlage
Limit value
according to 1st AEV
 BOD599,395215
 COD94,1854075
 TOC92,6851325
 Ntotal81,670--
 NH4-N--1,25
 Ptotal--0,711
Note:The table is updated in the middle of the following month, when the purification values (mean values) become available. The time lag results from the time needed for BOD5 assessment.
Efficiency:In a wastewater treatment plant, the cleaning efficiency describes the ratio of eliminated organic pollutants to added organic pollutants. The efficiency for a parameter is derived from the mean values of individual daily efficiencies over the indicated period.
Outlet concentration:  Concentration of a specific wastewater constituent in the outlet channel of the main wastewater treatment plant. The outlet concentration is the mean value derived from individual daily mean values over the indicated period.

January to December 2017

ParameterEfficiency [%]Outlet concentration [mg/l]
 ebswien
hauptkläranlage
Minimum efficiency
according to 1st AEV
ebswien
hauptkläranlage
Limit value
according to 1st AEV
 BOD598,995415
 COD95,2853475
 TOC94,985925
 Ntotal81,970--
 NH4-N--1,505
 Ptotal--0,711

January to December 2016

ParameterEfficiency [%]Outlet concentration [mg/l]
ebswien
hauptkläranlage
Minimum efficiency
according to 1st AEV
ebswien
hauptkläranlage
Limit value
according to 1st AEV
 BOD598,795415
 COD94,9853875
 TOC94,585925
 Ntotal84,370--
 NH4-N--1,445
 Ptotal--0,801

January to December 2015

ParameterEfficiency [%]Outlet concentration [mg/l]
ebswien
hauptkläranlage
Minimum efficiency
according to 1st AEV
ebswien
hauptkläranlage
Limit value
according to 1st AEV
 BOD599,195315
 COD94,2853875
 TOC93,8851025
 Ntotal85,470--
 NH4-N--1,135
 Ptotal--0,831

January to December 2014

ParameterEfficiency [%]Outlet concentration [mg/l]
ebswien
hauptkläranlage
Minimum efficiency
according to 1st AEV
ebswien
hauptkläranlage
Limit value
according to 1st AEV
 BOD599,095315
 COD94,0853575
 TOC93,5851025
 Ntotal87,370--
 NH4-N--0,645
 Ptotal--0,791

January to December 2013

ParameterEfficiency [%]Outlet concentration [mg/l]
ebswien
hauptkläranlage
Minimum efficiency
according to 1st AEV
ebswien
hauptkläranlage
Limit value
according to 1st AEV
 BOD598,795415
 COD93,5853675
 TOC92,5851025
 Ntotal85,570--
 NH4-N--0,595
 Ptotal--0,751

January to December 2012

ParameterEfficiency [%]Outlet concentration [mg/l]
ebswien
hauptkläranlage
Minimum efficiency
according to 1st AEV
ebswien
hauptkläranlage
Limit value
according to 1st AEV
 BOD598,895415
 COD94,4853575
 TOC93,4851025
 Ntotal84,470--
 NH4-N--0,835
 Ptotal--0,761

January to December 2011

ParameterEfficiency [%]Outlet concentration [mg/l]
ebswien
hauptkläranlage
Minimum efficiency
according to 1st AEV
ebswien
hauptkläranlage
Limit value
according to 1st AEV
 BOD598,795415
 COD93,8853775
 TOC94,1851025
 Ntotal86,170--
 NH4-N--0,905
 Ptotal--0,781

January to December 2010

ParameterEfficiency [%]Outlet concentration [mg/l]
ebswien
hauptkläranlage
Minimum efficiency
according to 1st AEV
ebswien
hauptkläranlage
Limit value
according to 1st AEV
 BOD598,495515
 COD94,2853375
 TOC93,5851025
 Ntotal84,770--
 NH4-N--1,015
 Ptotal--0,861

January to December 2009

ParameterEfficiency [%]Outlet concentration [mg/l]
ebswien
hauptkläranlage
Minimum efficiency
according to 1st AEV
ebswien
hauptkläranlage
Limit value
according to 1st AEV
 BOD598,595515
 COD94,7853275
 TOC94,485925
 Ntotal84,070--
 NH4-N--1,15
 Ptotal--0,91

January to December 2008

ParameterEfficiency [%]Outlet concentration [mg/l]
ebswien
hauptkläranlage
Minimum efficiency
according to 1st AEV
ebswien
hauptkläranlage
Limit value
according to 1st AEV
 BOD598,595515
 COD94,7853475
 TOC93,5851225
 Ntotal81,970--
 NH4-N--0,65
 Ptotal--0,91

Glossary

1st AEV
1st AEV is the German abbreviation for “1st Wastewater Emission Ordinance for Municipal Wastewater”. Minimum efficiency refers to the annual average, limit value refers to the maximum permissible outlet concentration in the purified effluents.

BOD5
BOD5 stands for the biochemical oxygen demand after 5 days. It is an indicator for the content of biologically degradable components in the water. The biochemical oxygen demand is the amount of dissolved molecular oxygen needed by microorganisms for the oxidation (or conversion) of organic components (carbon compounds) in the water under defined conditions within a certain period (5 days). The BOD5 is indicated in mgO2/l (water).

COD
COD stands for chemical oxygen demand. The COD is an indicator for the content of oxygen-depleting components in the water. The chemical oxygen demand is the consumption of potassium dichromate calculated during the chemical oxidation of organic water constituents under standardised conditions. It is indicated as oxygen equivalent in mg/l of water.

TOC
TOC stands for total organic carbon, which is the entire amount of organically bound carbon. Together with the chemical oxygen demand (COD), the TOC is a key indicator for the organic load of a body of water. It is indicated in mg C/l (water).

NH4-N
NH4-N stands for ammonia nitrogen. Ammonia nitrogen is an inorganic nitrogen compound which is produced during the biological breakdown of organic nitrogen compounds (e.g. protein). Ammonia nitrogen is indicated in mg N/l (wastewater).

Ptotal
Ptotal stands for total phosphorus. Total phosphorus is a sum parameter comprising dissolved inorganic phosphorus (orthophosphate) and dissolved or undissolved organic phosphorus. Total phosphorus is indicated in mg P/l (wastewater).

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