TY - GEN AU - Daigger AU - Buttz TI - Upgrading wastewater treatment plants T2 - Water quality management library VL - 2 SN - 1-56676-644-3 PY - 1998/// CY - Lancaster PB - Technomic Publishing Company KW - Águas residuais KW - tratamento KW - Água KW - análise KW - 628.3 ER -