Techno-economic evaluation of biofertilizer production using wastewater biosolids: case study from municipal wastewater treatment plants in northwest region of Russia
نویسندگان
چکیده
Abstract The continuous and rapid growth of sewage sludge (biosolids) from wastewater treatment plants (WWTPs) poses both economic environmental challenges. In many cities Russia, the situation has exacerbated with time. this study, three state-of-the-art biosolid management technologies, namely windrow composting (WC), tunnel (TC), lime stabilization (LS), were evaluated for their feasibility to produce commercially biofertilizers WWTP-derived biosolids. Based on an annual discharge 22,000 m 3 dewatered biosolids case WWTP, about 29,785, 22,453, 35,056 could be produced through WC, TC, LS, respectively. Analysis showed selected LS technological options feasible if selling price biofertilizer would maintained at 19 EUR/m WC 77 TC. discounted payback period (DPP) TC 3.1, 18.1, 25.3 years, respectively, IRR (internal rate return) 10%. key characteristics treated found good enough meet existing laws, standards, regulations in Russia. From investment perspective, study is useful developing production enterprise level.
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ژورنال
عنوان ژورنال: Journal of Material Cycles and Waste Management
سال: 2023
ISSN: ['1611-8227', '1438-4957']
DOI: https://doi.org/10.1007/s10163-023-01766-w