{'fraction_non_alphanumeric': 0.040457343887423045, 'fraction_numerical': 0.04309586631486367, 'mean_word_length': 4.524271844660194, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Treatment of Fermentation Wastewater by Integrated Anaerobic-erobic Bioreactor

A new pilot-scale integrated anaerobic-aerobic bioreactor was used for studying the treatment of fermentation wastewater. The result showed that the maximum organic volume loading rate of the system could reach 8.88 kg (COD) m-3 d-1 and the COD removal rate could be stable between 88.10%~96.88%, indicating that the reactor had high treatment efficiency and strong resistance to shock load. The structure of the reactor was reasonable, and it was favorable to preserve abundant and highly active microbes. The TS of granule sludge in anaerobic zone was as high as 83.9 g L-1, the VS/TS was 56.9%~57.4%, and the specific activity of methane production was 280~350 mL CH4 gvss-1 d-1. The TS of immobilized biological granule was as high as 64.03 g L-1 carrier, and the VS/TS was 94.02%~94.30%. The analysis of degradation process in each functional zone confirmed the integrated structure of the anaerobic and aerobic zones was reasonable, which made pollutants degraded step by step and ensured the treatment effect of the whole system. Fig 8, Tab 4, Ref 11