Abstract The possibility of using tannery raw wastewater as substitute for the nutrient supply in the anaerobic co-digestion of two tannery solid waste was investigated with regard to energy efficiency, waste treatment efficiency and economic efficiency. The results showed that the use of tannery wastewater as a source of nutrients for the AD of solid tannery waste proved to be adequate from the point of view that the three residues are being treated simultaneously. There was a biogas production of only 1.9 ± 0.3 mL/VSS. However, the percentage of methane in the biogas reached 33 % at the beginning of the process, proving that there was methanogenic activity and that AD established. The cost analysis showed that there is a great reduction in the cost of wastewater treatment and solid waste disposal of 23 % and 18 %, respectively, in terms of electricity consumption and 11 % and 8 % respectively in terms of thermal consumption.

中文翻译：

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通过厌氧共消化混合制革固体废物生产沼气中的制革废水作为营养供应

摘要 从能源效率、废物处理效率和经济效益三个方面研究了在两种制革固体废物厌氧共消化中利用制革原废水替代养分供应的可能性。结果表明，从三种残留物同时处理的角度来看，使用制革废水作为制革固体废物 AD 的营养来源证明是足够的。沼气产量仅为 1.9 ± 0.3 mL/VSS。然而，沼气中甲烷的百分比在该过程开始时达到了 33%，证明存在产甲烷活动并且 AD 成立。成本分析表明，废水处理和固废处理的成本分别降低了23%和18%，