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����ľ�����a�Uˮ,���M���ˣ�IC��������̎���ߝ�������}�ЙC�Uˮ�Ć����о�,���Y���������ӷN�����w������,�����MˮCOD/SO₂^-4ֵ�s��3.5�r,������CODؓ����߷��Ȟ�ÿ��20%���ң����^26 d���Z�����B(y��ng),��COD��SO₂^-4ؓ�ɷքe���_20 kg/(m³·d)��5.5 kg/(m³·d),��CODȥ�����_��80%���ϣ������߀ԭ���_��90%����,���a���ʼs0.60 L/g COD,���a�����s120 L/d�����������ӳɹ�,��

Start-up of internal circulation(IC) reactor for treatment of high-strength sulfate wastewater was investigated fed with xylose wastewater. Results showed that the IC reactor could be started up successfully inoculated with anaerobic granular sludge, when the influent COD/SO₂^-4 ratio was 3.5, as well as the COD loading increased about 20% every time. After 26 days acclimation, the COD and SO₂^-4 load could be up to 20 kg/(m³·d) and 5.5 kg/(m³·d), respectively, the removal efficiency of COD was more than 80%, the SO₂^-4 reduction rate was more than 90%, the production rate of biogas was about 0.60 L/g COD, and the biogas production was about 120 L/d.

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