Cost modeling for sludge and waste management from wastewater treatment plants: an empirical approach for Spain

Abstract Wastewater treatment involves the generation of large volumes of sludge and other waste. Managing this waste in an economical and environmentally acceptable way has become a matter of increasing importance over the last few years. While the technologies and processes to reduce sludge generation are being widely studied, research on the economic aspects is much more limited. This study applies a cost-modeling methodology that uses statistical information from a sample of Spanish wastewater treatment plants (WWTPs) to generate a sewage sludge and waste management cost function with the aim of contributing to a better understanding of the cost structure and predicting the cost savings that will result from reducing the generation of sludge. Likewise, considering two possible scenarios, potential savings related to sludge reduction in some European countries demonstrate the helpfulness of the cost function developed.

[1]  Basil K. Papadopoulos,et al.  Cost and Land Functions for Wastewater Treatment Projects: Typical Simple Linear Regression versus Fuzzy Linear Regression , 2007 .

[2]  Enrica Uggetti,et al.  Technical, economic and environmental assessment of sludge treatment wetlands. , 2011, Water research.

[3]  . M.Jamil,et al.  Utilization of Sewage Sludge as Organic Fertiliser in Sustainable Agriculture , 2006 .

[4]  Matthias Kraume,et al.  Development of a Cost Model for Membrane Bioreactors Including Sludge Handling Costs , 2010 .

[5]  Andreas N. Angelakis,et al.  Application of Cost Criteria for Selection of Municipal Wastewater Treatment Systems , 2003 .

[6]  H. Bode,et al.  The cost of municipal sewage treatment – structure, origin, minimization – methods of fair cost comparison and allocation , 2000 .

[7]  Antonis A. Zorpas,et al.  Evaluation of sewage sludge production and utilization in Greece in the frame of integrated energy recovery , 2011 .

[8]  S. I. Pérez-Elvira,et al.  Sludge minimisation technologies , 2006 .

[9]  M. Gratziou,et al.  ECONOMIC EVALUATION OF SMALL CAPACITY SEWAGE PROCESSING UNITS , 2006 .

[10]  Ni-Bin Chang,et al.  A comparative analysis of methods to represent uncertainty in estimating the cost of constructing wastewater treatment plants. , 2002, Journal of environmental management.

[11]  Ying Li,et al.  Oxic-settling-anoxic (OSA) process combined with 3,3′,4′,5-tetrachlorosalicylanilide (TCS) to reduce excess sludge production in the activated sludge system , 2010 .

[12]  M. Mclaughlin,et al.  Land application of sewage sludge (biosolids) in Australia: risks to the environment and food crops. , 2010, Water science and technology : a journal of the International Association on Water Pollution Research.

[13]  María Molinos-Senante,et al.  Cost modelling for wastewater treatment processes , 2011 .

[14]  Renato Iannelli,et al.  Potential of on-site vermicomposting of sewage sludge in soil quality improvement , 2010 .

[15]  Antonis D. Koussis,et al.  Cost of reclaimed municipal wastewater for applications in seasonally stressed semi-arid regions , 2005 .

[16]  Seung-Hyun Kim,et al.  Full-scale demonstration of improvement of sludge treatment performance , 2009 .

[17]  Eran Friedler,et al.  Effects of design flow and treatment level on construction and operation costs of municipal wastewater treatment plants and their implications on policy making. , 2006, Water research.

[18]  Konstantinos P. Tsagarakis,et al.  New directions in water economics, finance and statistics , 2005 .

[19]  Guangming Zhang,et al.  Ultrasonic reduction of excess sludge from activated sludge system: energy efficiency improvement via operation optimization. , 2011, Ultrasonics sonochemistry.

[20]  C Aragón,et al.  Comparison of four chemical uncouplers for excess sludge reduction , 2009, Environmental technology.

[21]  Giuseppe Mancini,et al.  Development of a web-based tool for the calculation of costs of different wastewater treatment and reuse scenarios , 2003 .

[22]  Chih-Sheng Lee,et al.  Development of a cost function for wastewater treatment systems with fuzzy regression , 1999, Fuzzy Sets Syst..

[23]  D Bolzonella,et al.  Anaerobic co-digestion of sludge with other organic wastes in small wastewater treatment plants: an economic considerations evaluation. , 2007, Water science and technology : a journal of the International Association on Water Pollution Research.