<trans-title>Spatio-temporal characteristics of non-point source and sewer overflow pollution and its impacts on water environment in Shenzhen Bay Basin</trans-title>

Huan LUO; Xiu-hong CHEN; Qiong WU; Na LUO; Xu HUANG

doi:10.31497/zrzyxb.20201216

Journal of Natural Resources, Volume. 35, Issue 12, 3018(2020)

Spatio-temporal characteristics of non-point source and sewer overflow pollution and its impacts on water environment in Shenzhen Bay Basin

Huan LUO*... Xiu-hong CHEN, Qiong WU, Na LUO and Xu HUANG |Show fewer author(s)

Author Affiliations

Pearl River Hydraulic Research Institute, Pearl River Water Resources Commission, Guangzhou 510635, China

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Abstract Get PDF(in Chinese)

Figures & Tables(12)

Fig. 1. Location of the study area and sampling sites

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Fig. 2. Schematic diagram of basin-bay integrated water environmental model

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Fig. 3. Ratio of pollution in rainy season in Shenzhen Bay Basin

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Fig. 4. Temporal characteristics of non-point pollution and its relationship with rainfall in Shenzhen Bay Basin

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Fig. 5. Spatial characteristics of non-point source and sewer overflow pollution in Shenzhen Bay Basin

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Fig. 6. Variation characteristics of quality of rainstorm of "11.25" in Shenzhen River Estuary

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Fig. 7. Concentration envelope lines of COD over Shenzhen Bay in rainy and dry seasons

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Fig. 8. Concentration envelope lines of NH₃-N in Shenzhen Bay in rainy and dry seasons

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Fig. 9. Concentration envelope lines of TP in Shenzhen Bay in rainy and dry seasons

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Table 1. Main parameters of SWMM

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Table 1. Main parameters of SWMM

用地类型	污染物最大累积量(COD/NH₃-N/TP)	半饱和累积时间(COD/NH₃-N/TP)	冲刷系数(COD/NH₃-N/TP)	冲刷指数(COD/NH₃-N/TP)
建设用地	5.715/0.32/0.3	0.4/0.4/0.4	2.639/0.27/0.01	0.102/1.13/1.6
绿地	0.187/0.22/0.3	0.4/0.4/0.4	0.015/0.12/0.006	1.2/1.13/1.2

Table 2. Validation of hydrodynamics and quality (%)
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Table 2. Validation of hydrodynamics and quality (%)
水动力验证点位流速误差水质验证点位 COD误差 NH₃-N误差 TP误差
1# -10.63 S1 -11 -11 7
2# 11.30 S2 9 19 -18
3# 7.92 S3 6 12 -17
4# 4.48 S4 -12 -17 -15
5# 8.45 S5 8 14 -15
6# 5.18 — — — —

Table 3. Sewer overflow of rainstorm of “11.25” in Shenzhen River Basin

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Table 3. Sewer overflow of rainstorm of “11.25” in Shenzhen River Basin

溢流断面	发生时间/(月.日)	水质指标/(mg/L)
溢流断面	发生时间/(月.日)	COD	NH₃-N	TP
皇岗河河口	11.26	108^*	13.83^*	1.74^*
沙湾河沿河箱涵出水口	11.25	38.3	16.04^*	1.80^*
	11.26	75.9^*	13.67^*	3.01^*
	11.27	109^*	22.36^*	2.8^*
	11.28	95.9^*	3.73^*	0.63^*
沙湾河截排隧洞溢流口	11.26	26.9	4.16^*	1.96^*
	11.28	—	4.37^*	0.94^*
莲花水沿河箱涵溢流口	11.26	21.5	1.81	1.39^*
	11.27	12.8	1.58	0.65^*
	11.28	14.2	1.04	0.69^*
李朗河下游总口前	11.25	148.5^*	36.32^*	3.41^*
	11.26	45.1^*	8.23^*	2.01^*
白泥坑沟河口	11.26	45.7^*	6.11^*	2.25^*

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Huan LUO, Xiu-hong CHEN, Qiong WU, Na LUO, Xu HUANG. Spatio-temporal characteristics of non-point source and sewer overflow pollution and its impacts on water environment in Shenzhen Bay Basin[J]. Journal of Natural Resources, 2020, 35(12): 3018

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