Wyniki wyszukiwania - BazTech

1

Określenie możliwości zmniejszenia obciążenia oczyszczalni ścieków mleczarskich przez zastosowanie wydzielonego oczyszczania odcieków z przeróbki osadów

Dąbrowski W., Wiater J.

Rocznik Ochrona Środowiska

|

2013

|

Tom 15, cz. 1

823--834

EN

The paper presents author's experience related to reject water produced during aerobic sludge treatment in dairy waste water treatment plant. Problem of reject water relates to almost every biological sewage treatment plant that applies aerobic or anaerobic stabilization of sewage sludge. Reject water is a byproduct like sewage sludge. It is usually returned to the beginning of purification line. Dairy WWTP belonging to Bielmlek Bielsk Podlaski was modernized in 2011 after 30 years exploitation with “Promlecz” system. Flotation process was implemented as high efficiency biological treatment witch SBR system too. The main aim of investigation was to find out the quantity and quality of reject water and raw sewage after modernization. Author presents results obtained between September and November 2012. Mean pollution concentration in reject water and sewage from Bielmlek dairy W.W.T.P. after modernization were: BOD5 -114 mg O2/l in reject water and 1520 mg O2/l in sewage, COD-290 mg O2/l in reject water and 1890 mg O5 /l in sewage, TKN-2.4 mg N/l in reject water and 65,0 mg N/l in sewage, ammonia nitrogen 19.8 mg N-NH4/l in reject water and 1.8 mg N-NH4/l, in sewage and total phosphorus -7.5 mg P/l in reject water and 9.8 mg P/l in sewage. The mean quantity of reject water was 45 m3/day while raw sewage 780 m3/day. The share of reject water load in row dairy sewage load was counted and it was only 0.7% for BOD5, 8% for TKN and 38% for ammonia nitrogen. Due to high load of ammonia nitrogen in reject water it is justified to implement separate treatment to decrease it. In 2010 in Bielmlek dairy WWTP was started full scale installation to treat reject water with constructed wetland. It was implementation of his research project “Evaluation of constructed wetlands usefulness to purify reject water from sludge aerobic processing in dairy wastewater treatment plants”. Due to composition of reject water after modernization of dairy WWTP. It was counted that the share ammonia nitrogen load in row wastewater can be decreased from 38.6% without treatment to 12.4% after treatment with constructed wetland.

2

Optymalizacja technologii oczyszczania ścieków w aspekcie rozbudowy systemu kanalizacyjnego

Zdebik D., Korczak K.

Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa

|

2010

|

nr 1

73-89

PL

Procesy inwestycyjne, związane z rozbudową systemu kanalizacyjnego, mają wpływ na zmianę parametrów ścieków dopływających do oczyszczalni. Zwiększenie obciążenia układu technologicznego oczyszczalni dodatkowym ładunkiem zanieczyszczeń skutkuje koniecznością dostosowania go do zmienionych warunków, przez działania inwestycyjne bądź też optymalizację technologii w celu jej intensyfikacji. Pod tym kątem w artykule oceniono trzy oczyszczalnie ścieków, pracujące w warunkach przebudowy i rozbudowy systemu kanalizacyjnego. Przedstawiono obciążenie oczyszczalni ładunkiem zanieczyszczeń oraz scharakteryzowano podatność ścieków w procesie ich biologicznego oczyszczania. Dokonano prognozy dopływu ścieków z terenów objętych inwestycją i określono ich wpływ na obecnie pracujące instalacje. Przedstawiono także ocenę planowanej modernizacji oczyszczalni w zlewni.

EN

Led investment processes related to expansion of sewage system have influence on a change of parameters of sewage floating to sewage treatment plant. An increase of technological system of sewage treatment plant burden with additional pollutant load cause that adjustment of technological system through investment activities or optimisation of technology towards its intensification is the necessity. An analysis was carried out in sewage treatment plant with throughtput from 15 000 to 100 000 PE, with reference to identification of current sewage treatment process and changes, which an additional pollutant load evokes. An comparative analysis includes 3 sewage treatment plants working in the condition of rebuilding and expansion of sewage system. Sewage treatment plant burden with pollutant load was presented and susceptibility of sewage in the biological sewage treatment process was characterised. Forecast of sewage inflow from investment area was carried out and their influence on currently working facilities was determined. An assessment of planned investment purposes in the sewage treatment planfs catchment in the aspect of its adjustment to increased pollutant load inflow as an effect of realization of infrastructure investments co - financed by European Union funds was also presented.

3

Wyniki działania zmodenizowanej oczyszczalni ścieków Halemba II w Rudzie Śląskiej

Pistelok F., Wypler M., Tokarz M.

Forum Eksploatatora

|

2003

|

Nr 2 (11)

7-10