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Table 1

The parameters for river water sample (unit: mg L⁻¹)

Item	Sort	TN	TP	TSS	COD_Mn	DO	pH	Water clarity (cm)
Inlet	Average	1.90	0.136	35.25	6.05	7.45	7.98	48
Inlet	Range	1.60–2.06	0.12–0.15	30–45	4.8–7.2	6.78–8.96	7.50–8.43	–
Outlet	Average	1.08	0.052	11.56	3.92	8.24	8.08	73
Outlet	Range	0.88–1.32	0.04–0.07	6.0–12.5	3.15–4.3	7.02–9.23	7.46–8.43	–
Standard (IV)	–	1.50	0.10	–	10	≥3	6–9	–
Standard (III)	–	1.00	0.05	–	6	≥5	6–9	–
Removal rate (%)	–	28.96–54.17	47.02–71.23	62.50–80.12	29.41–36.36	–	–	–

Item	Sort	TN	TP	TSS	COD_Mn	DO	pH	Water clarity (cm)
Inlet	Average	1.90	0.136	35.25	6.05	7.45	7.98	48
Inlet	Range	1.60–2.06	0.12–0.15	30–45	4.8–7.2	6.78–8.96	7.50–8.43	–
Outlet	Average	1.08	0.052	11.56	3.92	8.24	8.08	73
Outlet	Range	0.88–1.32	0.04–0.07	6.0–12.5	3.15–4.3	7.02–9.23	7.46–8.43	–
Standard (IV)	–	1.50	0.10	–	10	≥3	6–9	–
Standard (III)	–	1.00	0.05	–	6	≥5	6–9	–
Removal rate (%)	–	28.96–54.17	47.02–71.23	62.50–80.12	29.41–36.36	–	–	–

These values are means calculated from the data from October 2020 to May 2021.