کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5478536 | 1521806 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of permeate recycling and light intensity on growth kinetics of Synechocystis sp. PCC 6803
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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چکیده انگلیسی
Permeate reuse for cultivating Synechocystis sp. PCC 6803 was studied in batch photosynthetic-growth experiments having a wide range of the ratio of membrane permeate to BG-11 medium. The 50% dilution of permeate gave the greatest biomass concentration and specific growth rate for Synechocystis, but up to 100% permeate had minimal impact on biomass growth; thus, a high ratio of permeate supported good growth of Synechocystis. With initial values of the spatially averaged light intensity (LISA) ranging from 49 to 479 μE mâ 2 sâ 1, Synechocystis exhibited typical photo-inhibition growth kinetics in 50% permeate. The half-maximum-rate light irradiance (KL) was 39 μE mâ 2 sâ 1, and the half-inhibition-rate light irradiance (KI) was 281 μE mâ 2 sâ 1. The KI value is larger than seen previously for Synechocystis in BG-11 medium, which suggests that culturing in permeate may have made Synechocystis less sensitive to photo-inhibition. The exponential growth rate of Synechocystis sp. PCC 6803 was not inhibited by recycled permeate through multiple rounds of growth in 50% permeate. These results demonstrate that permeate recycling is a feasible strategy for reusing nutrients and minimizing water loss.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Algal Research - Volume 27, November 2017, Pages 170-176
Journal: Algal Research - Volume 27, November 2017, Pages 170-176
نویسندگان
Jae-Hoon Hwang, Bruce E. Rittmann,