Investigations were conducted to explore the use of anaerobic treatment options that may allow complete recovery of primary and waste activated sludge streams for incineration from a graphic paper mill with an integrated deinked pulp plant. The effective reduction of waste activated sludge quantity (55%-65%) was obtained by the anaerobic treatment of wastewater from the deinked pulp plant or by the anaerobic stabilization of the mill effluent from primary treatment, where chemical oxygen demand (COD) removal efficiency of 67.6% and 64.8%, and biogas potential of 440 and 496 m(3)/t CODremoved were achieved, respectively.
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机译：进行了调查，以探索厌氧处理方法的使用，这些方法可以完全回收一级和废活性污泥流，以便从带有集成脱墨纸浆厂的图形造纸厂焚烧。通过对脱墨纸浆厂的废水进行厌氧处理，或通过对初级处理过程中的工厂废水进行厌氧稳定化（有效去除化学需氧量（COD）），可以有效减少废物活性污泥量（55％-65％）分别达到了67.6％和64.8％的沼气潜力，去除了440和496 m（3）/ t COD的沼气潜力。
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