00824nam a2200193Ia 4500 CTU_29219 210402s9999 xx 000 0 und d 338.1 M277 Ireno J Manguiat Turning an environmental pollutant into an agricultural resource Ireno J Manguiat Los Bamos, Languna, Philippines SEAMEO SEARCA 1998 The book discusses the utilization of sewage sludge which is an environmental pollutants as an organic fertilizer for upland rice and pechay. It also addresses the issuesof heavy metal accumulation and pathogenic contamination of sewage sludge - teated soils agriculture - economic aspects Minh, 990315 Trung tâm Học liệu Trường Đại học Cần Thơ