{'fraction_non_alphanumeric': 0.01910828025477707, 'fraction_numerical': 0.009554140127388535, 'mean_word_length': 5.227722772277228, '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}}
[Study on two stage immerged biological film wastewater treatment reactor].

The two stage immerged biological film wastewater treatment reactor was studied in different organic loads. The organic removal efficiency of each stage, filter capability and technical contrast between one stage reactor and two stages reactor were discussed. The results showed that the distribution ratio of organic removal were 76% and 24% in first and second stage reactors respectively, COD removal efficiency was 42% in sand filter unit, and the two stage reactor was more effective and reliable than one stage reactor in the same organic loads.