Co-digestion of leachate from aerobic stabilization of OFMSW (leachate_OFMSW) with waste glycerine (WG) from saponification is a promising approach for municipal waste and wastewater treatment. The effect of feedstock composition on co-digestion efficiency was examined. Two feedstocks with different contents of WG (6%, 13%) were used, which affected the COD:TKN ratios in those feedstocks (60, 100). Leachate_OFMSW provided nitrogen and the micro- and macroelements. In both feedstocks, the N–NH₄:TKN ratio was low (0.08), indicating that the dominant form of nitrogen was organic nitrogen (N_org). Co-digestion was carried out in upflow anaerobic-sludge blanket reactors (37 ± 2 °C; OLR, 4 kg COD m⁻³ d⁻¹).

This process ensured highly effective COD removal (over 97%). At a feedstock COD:TKN ratio of 60, specific biogas production (SBP) was ca. 0.22 m³ kg⁻¹ COD, and methane content, 61.6%. Increasing the COD:TKN ratio to 100 significantly increased SBP to ca. 0.36 m³ kg⁻¹ COD, but reduced biogas quality (54.2% CH₄). Although N_org had to be ammonified to ammonium because of the low N–NH₄:TKN ratio in the feedstocks, the ammonium concentration in the post-processing wastewater remained low. Moreover, the low ammonium concentrations meant that the pH (8.8) did not have a toxic effect on anaerobic co-digestion (free ammonia concentrations were merely ca. 28 and 5.5 mg L⁻¹, respectively). However, at higher feedstock COD:TKN ratios than those tested, ammonium could be exhausted, which would impede methane production. These results indicate that WG is an effective co-substrate for leachate_OFMSW if an appropriate amount of WG is added to the feedstock.

将OFMSW的好氧稳定液中的渗滤液（渗滤液_OFMSW）与皂化的废甘油（WG）共消化是一种用于市政废物和废水处理的有前途的方法。考察了原料组成对共消化效率的影响。使用了两种具有不同WG含量的原料（6％，13％），这会影响这些原料中的COD：TKN比率（60，100）。渗滤液_OFMSW提供了氮以及_微量元素和_宏观元素。在两种原料中，N–NH ₄ ∶TKN的比率都较低（0.08），表明氮的主要形式是有机氮（N _org）。共消化在上流厌氧污泥床反应器（37±2°C; OLR，4 kg COD m ^-3 d ^-1）。

此过程确保了高效的COD去除（超过97％）。当原料的COD：TKN比为60时，特定的沼气产量（SBP）约为10。0.22 m ³  kg ^-1 COD和甲烷含量为61.6％。将COD：TKN比率提高到100，可将SBP显着提高至约200。0.36 m ³  kg ^-1 COD，但沼气质量降低（54.2％CH ₄）。尽管由于N–NH ₄含量低，N _org必须被氨化为铵。原料中的：TKN比，后处理废水中的铵浓度仍然很低。此外，低铵浓度意味着pH（8.8）对厌氧共消化没有毒性作用（游离氨的浓度分别仅为28和5.5 mg L ^-1）。但是，如果原料COD：TKN的比率高于测试的比率，则会消耗掉铵，这会阻碍甲烷的生产。这些结果表明，如果在原料中添加适量的WG，则WG是渗滤液_OFMSW的有效共基质。