The Slaughter House Waste Management


  • Arshad Ali Instructor, College of Civil Engineering (MCE-NUST), Risalpur NWFP
  • Hashim Nisar Hashmi Professor and Chairman, Department of Civil and Environmental Engineering, UET Taxila
  • Habib Akber Department of Civil Engineering



Slaughter house effluent, Sedimentation, Alum, Activated sludge system, Pakistan


Thousands of animals are slaughtered every year in Pakistan, but unfortunately there is no proper mecha-nism nor waste water management system to handle the effuent discharge of the slaughtering process. Therefore, this study was designed to evaluate the potential hazards associated with slaughter houses, by analyzing waste-water characteristics and designing a suitable treatment system for safe effuent disposal. The results obtained indicate that the wastewater parameters of the slaughter house do not meet the requirements of the local effuent dis-charge standards. The average wastewater characteristics in terms of COD, BOD, TDS, TSS, turbidity and pH observed were 9600mg/L, 7450 mg/L, 1650 mg/L, 2280 mg/L, 1489 NTU and 6.5, respectively. The results of plain sedimenta-tion point out that the maximum removal effciency of COD, BOD, TDS, TSS and turbidity at 80 minutes of detention time could be obtained as13%, 21%, 10%, 30% and 39%, respectively. Out of the three coagulants tested, the alum was tested out as the most suitable coagulant in terms of its treatability performance, which gives 80% COD removal compare to lime and magnesium sulfate that gives about 56% and 71% removal, respectively. The activated system designed consists of 12m x 7.5m x 3.5m rectangular aeration tank and 12m x 7m x 5m secondary sedimentation tank. The amount of air, power and the major nutrient (N and P) required for this system were worked out as 136m3/min, 7.8kW, 152 N-kg/day and 30 P-kg/day, respectively.

Key words: Slaughter house effluent; Sedimentation; Alum; Activated sludge system; Pakistan

DOI: 10.3126/hn.v7i0.4236

Hydro Nepal

Journal of Water, Energy and Environment

Vol 7, July, 2010

Page: 48-53

Uploaded date: 31 January, 2011


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Author Biographies

Arshad Ali, Instructor, College of Civil Engineering (MCE-NUST), Risalpur NWFP

Mr. Ali hold an MSc in Civil Engineering

Hashim Nisar Hashmi, Professor and Chairman, Department of Civil and Environmental Engineering, UET Taxila


Habib Akber, Department of Civil Engineering

Graduate in Civil Engineering at UET Taxila and has obtained a degree of Masters in Environmental Engineering. Presently, he is working as a Senior Consultant at various organizations.


How to Cite

Ali, A., Hashmi, H. N., & Akber, H. (2011). The Slaughter House Waste Management. Hydro Nepal: Journal of Water, Energy and Environment, 7, 48–53.