Effect of coking wastewater on the growth and energy production of five wetland plant species

ABSTRACT

In order to investigate effect of coking wastewater (CW) on the growth and energy production of wetland plant species, cress (C), felon herb (FH), cockspur grass (CG), water shield (WS), and bracken fern (BF) were used to purify the CW. Results showed that high concentration of CW caused decreased photosynthetic rate, transpiration rate, and relative growth rate. C, WS, and BF showed higher adaptability than FH and CG. Below a CW concentration of 30%, growth of C, WS, and BF was less affected. Energy recovery of C, WS, and BF were more favorable when they grew in CW.

KEYWORDS:

• Coking wastewater
• energy production
• purification
• relative growth rate
• wetland plant

Funding

The authors are grateful for the funding and support provided by the Key Laboratory Project Foundation of Shaanxi Provincial Education Department in China (17JS144).

Additional information

Funding

The authors are grateful for the funding and support provided by the Key Laboratory Project Foundation of Shaanxi Provincial Education Department in China (17JS144).