Department of Health, Safety, Environment and Civil Engineering, University of Petroleum and Energy Studies, Dehradun, 248007, India.
Centre for Pollution Control & Environmental Engineering, Pondicherry University, Chinakalapet, Puducherry, 605014, India.
Environ Sci Pollut Res Int. 2020 Feb;27(6):6078-6087. doi: 10.1007/s11356-019-07259-4. Epub 2019 Dec 21.
The freely and abundantly available amphibious plant Indian pennywort Bacopa monnieri (L.) Pennell was able to phytoremediate sewage (greywater) quickly and substantially in SHEFROL® ("sheet flow root level") bioreactors, achieving reductions in the levels of several indicator parameters: suspended solids, chemical oxygen demand, biological oxygen demand, nitrogen, phosphorus, zinc, copper, nickel, and manganese to the extents of about 90%, 76-77%, 80%, 65%, 55%, 56%, 42%, and 41%, respectively at hydraulic retention times of just 6 h. As these indicators of primary, secondary, and tertiary treatments were achieved simultaneously in a single reactor compartment, the system presented in this paper promises to be simple, rapid, and economical, in achieving significant treatment of greywater.
自由且大量存在的水生植物印度旱金莲花（Bacopa monnieri（L.）Pennell）能够在 SHEFROL®（“片状流根部层”）生物反应器中快速大量地修复污水（灰水），使几个指标参数的水平显著降低：悬浮物、化学需氧量、生化需氧量、氮、磷、锌、铜、镍和锰的去除率分别达到约 90%、76-77%、80%、65%、55%、56%、42%和 41%，水力停留时间仅为 6 小时。由于这些一、二、三级处理的指标在单个反应器隔室中同时得到实现，本文所提出的系统有望实现简单、快速和经济的灰水处理。
