000			00682nam a2200217Ia 4500
008			130910s9999 xx 000 0 und d
020			_a0121995038
041			_aeng
082			_221st ed. _a628.3 _bECO.3
245			_aEcological aspects of used-water treatment _cedited by C.R. Curds and H.A. Hawkes
260			_aLondon : _bAcademic Press , _c1983
300			_ax, 333p.
500			_aContent: v.3: The processes and their ecology.
504			_aIndex: pp 335-40
653			_aSewage-environmental aspects
653			_aSewage-Purification
653			_aSewage-Purification-Biological treatment
700			_aCurds, C.R., ed.
700			_aHawkes, H.A., ed.
942			_cEN _2ddc
999			_c16069 _d16069