Pilot-scale anaerobic digestion of screenings from wastewater treatment plants.
Pilot-scale anaerobic digestion of screenings from wastewater treatment plants.
复制标题
对废水处理厂筛分物进行中试规模厌氧消化。
DOI：
10.1016/j.biortech.2010.06.150
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发表时间：
2010
影响因子：
11.4
通讯作者：
R. Gourdon
中科院分区：
文献类型：
--
作者：
R. Le Hyaric;J. Canler;B. Barillon;P. Naquin;R. Gourdon
采用90L中试消化池，在35℃半连续条件下，对城市污水处理厂筛分的厌氧消化进行了研究。在前4周，干固体停留时间为28天，但观察到了抑制条件的建立。因此，暂停饲喂4周，以使消化池从抑制中恢复，然后逐渐增加到每周6公斤生垃圾的恒定负荷，相当于平均停留时间约为35天的干固体。在这一阶段，沼气产量稳定在每周513至618Nl/kg VSadded之间，甲烷含量约为61%v/v。因此，这项工作的结果支持(共)消化作为城市污水处理厂筛选的潜在替代处理的可行性。
The anaerobic digestion of screenings from a municipal wastewater treatment plant was studied in a 90L pilot-scale digester operated at 35°C under semi-continuous conditions. In the first 4weeks, a dry solids residence time of 28days was applied, but the installation of inhibitory conditions was observed. Feeding was therefore suspended for 4weeks to allow the digester to recover from inhibition, and then progressively increased up to a constant load of 6kg of raw waste per week, corresponding to an average residence time of about 35days of dry solids. At this stage, biogas production stabilized between 513 and 618Nl/kg VSaddedper week, with methane contents around 61% v/v. The results of this work thereby supported the feasibility of (co-)digestion as a potential alternative treatment of screenings from municipal wastewater treatment plants.