Electrochemical Oxidation Using BDD Anodes Combined with Biological Aerated Filter for Biotreated Coking Wastewater Treatment

Table 1

Main parameters of influent quality and effluent standard.

Items	COD	BOD5	Volatile phenol	Cyanide	-N	-N	Conductivity	pH
	(mg L^−1)	(mg L^−1)	(mg L^−1)	(mg L^−1)	(mg L^−1)	(mg L^−1)	(S cm^−1)
Influent	190.2–255.8	10.28–15.23	0.56–0.78	2.52–3.80	5.2–7.6	21.12–29.38	1850–1920	7.2–7.9
Effluent	≤100	≤20	≤0.5	≤0.5	≤15	—	—	6–9