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An Analysis of Waste Management Policies on Utilizing Biosludge as Material Resources in Taiwan
Graduate Institute of Bioresources, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
Received: 2 July 2012; in revised form: 8 August 2012 / Accepted: 8 August 2012 / Published: 21 August 2012
Abstract: Biosludge is a by-product of secondary wastewater treatment processes. Due to its high contents of organic carbon and plant nutrients, this bioresource can be practically reused as raw feedstock for making organic fertilizers and building materials. The objective of this paper was to provide a preliminary analysis of biosludge utilization in Taiwan, including food processing sludge, wine brewery sludge, textile sludge, pulp sludge and agricultural sludge. The discussion focused on the status of biosludge generation in recent years (2004–2010), and its sustainable management principle. This paper also presents updated information about the governmental regulations and policies for promoting these biosolids as material resources, as well as validating the regulatory levels of toxic constituents in the biosludge and its derived product (e.g., organic fertilizer). Based on the preliminary benefit analysis of utilizing biosludge as raw material for organic fertilizer, reusing biosludge, being a beneficial resource, should be superior to those by traditional treatments (i.e., incineration and sanitary landfill).
Keywords: biological wastewater treatment; sludge; organic fertilizer; regulatory promotion; benefit analysis
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MDPI and ACS Style
Tsai, W.-T. An Analysis of Waste Management Policies on Utilizing Biosludge as Material Resources in Taiwan. Sustainability 2012, 4, 1879-1887.
Tsai W-T. An Analysis of Waste Management Policies on Utilizing Biosludge as Material Resources in Taiwan. Sustainability. 2012; 4(8):1879-1887.
Tsai, Wen-Tien. 2012. "An Analysis of Waste Management Policies on Utilizing Biosludge as Material Resources in Taiwan." Sustainability 4, no. 8: 1879-1887.