Department of Environmental Science and Engineering, Guru Jambheshwar University of Science & Technology, Hisar 125001, India.
Bioresour Technol. 2011 Nov;102(21):9957-64. doi: 10.1016/j.biortech.2011.08.011. Epub 2011 Aug 10.
The study reports production of hydrogen in photobioreactors with free (PBR(Fr)) and immobilized (PBR(Imm)) Nostoc biomass at enhanced and sustained rates. Before running the photobioreactors, effects of different immobilization matrices and cyanobacterial dose on hydrogen production were studied in batch mode. As hydrogen production in the PBRs declined spent biomass from the photobioreactors were collected and utilized further for column biosorption of highly toxic dyes (Reactive Red 198+Crystal Violet) and metals (hexavalent chromium and bivalent cobalt) from simulated textile wastewater. Breakthrough time, adsorption capacity and exhaustion time of the biosorption column were studied. The photobioreactors with free and immobilized cyanobacterium produced hydrogen at average rates of 101 and 151 μmol/h/mg Chl a, respectively over 15 days, while the adsorption capacity of the spent biomass was up to 1.4 and 0.23 mg/g for metals and 15 and 1.75 mg/g for the dyes, respectively in continuous column mode.
该研究报告称，在增强和持续的速率下，使用自由（PBR(Fr)）和固定化（PBR(Imm)）念珠藻生物质的光生物反应器中生产氢气。在运行光生物反应器之前，以分批模式研究了不同固定化基质和蓝藻剂量对产氢的影响。由于光生物反应器中的氢气产量下降，从光生物反应器中收集了用过的生物质，并进一步用于柱生物吸附模拟纺织废水中的高毒性染料（活性红 198+结晶紫）和金属（六价铬和二价钴）。研究了生物吸附柱的穿透时间、吸附容量和耗尽时间。在 15 天的时间内，自由和固定化蓝藻的光生物反应器分别以平均 101 和 151 μmol/h/mg Chl a 的速率产生氢气，而用过的生物质的吸附容量分别高达 1.4 和 0.23 mg/g 的金属和 15 和 1.75 mg/g 的染料，在连续柱模式下。
