Removal of nitrogen from pretreated wastewater in soil absorption system and denitrifying troughs

• Autorzy: Blazejewski R. , Zytynski W.
• Języki publikacji: EN

Abstrakty

EN

The paper presents results of two year field and laboratory investigations of a denitrifying system below leach lines. More than two days retention time was provided by siphoning of the denitrifying trough located 35 and 60 cm under the leach lines. Due to clogging and capillary suction in medium sand the seepage flow through the denitrifying troughs was limited to less than 10 % of the sewage inflow. Average efficiency of the total nitrogen removal was equal to 55 % after 3-4 days of travel time within the soil. To force wastewater to pass through the anaerobic bed within the trough two lateral vertical impermeable membranes are recommended.

Słowa kluczowe

EN

sanitation; environment protection; household sewage; waste water; denitrification; septic tank; nitrification; nitrogen removal; soil absorption system

• Wydawca: -
• Czasopismo: Electronic Journal of Polish Agricultural Universities. Series Environmental Development
• Rocznik: 1999
• Tom: 02
• Numer: 2
• Opis fizyczny: http://www.ejpau.media.pl/series/volume2/issue2/environment/art-01.html

Twórcy

autor

Blazejewski R.

• August Cieszkowski Agricultural University, Wojska Polskiego 73 A, 60-625 Poznan, Poland

autor

Zytynski W.

Bibliografia

• Blazejewski R. and Zytynski (1997). Preliminary results of investigations of nitrification and denitrification in a bed under leach lines (in Polish). In: Wastewater treatment, D. Wawrentowicz (ed.) Bialystok, 132-139
• Ericson A.E., Tiedje J.M., Ellis B. E. and Hansen C. M. (1971). A barriered landscape water renovation system for removing phosphate and nitrogen from liquid feedlot waste. In: Proc. Int. Symp. On Livestock Wastes ASCE St. Joseph, 232-234
• Rettinger S. (1993). Wasser- und Stoffdynamik bei Abwasserperkolation. Kor. Abwasser 10, 1604-1614
• US EPA (United States Environmental Protection Agency) (1992). Wastewater Treatment/Disposal for Small Communities. Manual. Cincinnati - Washington, DC