TY - BOOK ED - NPCS Board of Consultants and engineers TI - Water and air effluents treatment handbook SN - 9788178330471 PB - Asia Pacific Business Press KW - Biological filtration Sewage KW - Chlorination Sewage KW - Disposal Digested sludge KW - Effluents Disposing KW - Effluents treatmentWater and air Handbook KW - Handbook Effluents treatment(Water and air) KW - Industrial effluents KW - Sewage filtration KW - Waste water effluents Industrial ER -