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首页> 外文期刊>The Kasetsart Journal >Optimum Storage Condition for Spirulina Mat before Applying to Ammonia-Nitrogen Removal from Simulated Shrimp Culturing Water
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Optimum Storage Condition for Spirulina Mat before Applying to Ammonia-Nitrogen Removal from Simulated Shrimp Culturing Water

机译：螺旋藻垫在模拟虾养殖水中氨氮去除前的最佳贮藏条件

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The polyester mats fully attached by Spirulina were stored under different conditions before using for ammonia removal from simulated shrimp culturing water. Three factors on storage were studied; light intensity of 1000, 2000 and 3000 lux; substrate concentration of 1X, 0.5X, 0.3X and 0.1X Zarrouk's medium; storage time of 2,4, and 6 weeks. During storage, detachment of excess cells due to growth resulted in accumulation of suspended solids at 6 weeks in the range of 155 to 202 mg/l. More suitable condition for growth during storage yielded more suspended solids in solution. Circulated batch reactor with flow velocity of 0.14 m/s and initial ammonia nitrogen of 1 mg/l was applied for investigating the ammonia removal by stored Spirulina mats. Steady state effluent ammonia concentration of 0.127 mg-N/1 from fresh Spirulina mat reactor (control experiment) was achieved within 20 days. The control relative ammonia removal efficiencies from Spirulina mats, kept six weeks before applying in 1x Zarrouk's medium under 3000, 2000 and 1000 lux reactor at the end of experiment (25 days), were 93.8%, 92.3% and 91.9%, respectively. While the efficiencies by Spirulina mats, under 1000 lux light intensity, after storing in 0.5x, 0.3x and 0.1x Zarrouk's medium were 92.0%, 91.8% and 87.9%, respectively. Concentration of daily washed out suspended solid was found stable in all reactors. Optimal condition for storage of Spirulina for long term period (six weeks) was 1000 lux light intensity and 0.1x Zarrouk's medium.
机译：螺旋藻完全附着的聚酯垫在用于从模拟虾养殖水中去除氨气之前，要在不同条件下保存。研究了三个存储因素： 1000、2000和3000 lux的光强度; Zarrouk培养基的底物浓度为1X，0.5X，0.3X和0.1X;储存时间为2,4和6周。在储存过程中，由于生长而引起的多余细胞的分离导致在6周内悬浮固体的积累在155至202 mg / l的范围内。在储存期间更适合生长的条件在溶液中产生更多的悬浮固体。使用流速为0.14 m / s，初始氨氮为1 mg / l的循环间歇式反应器，研究通过储存的螺旋藻垫去除氨气的情况。新鲜螺旋藻垫反应器（对照实验）在20天内达到稳态流出氨浓度0.127 mg-N / 1。在实验结束（25天）时，在3000、2000和1000 lux反应器中于1x Zarrouk培养基中施用之前，螺旋藻垫的对照相对氨去除效率保持了6周，分别为93.8％，92.3％和91.9％。螺旋藻垫在1000 lux光照强度下的效率分别为92.0％，91.8％和87.9％，分别在0.5x，0.3x和0.1x的Zarrouk培养基中存储。发现在所有反应器中每日洗出的悬浮固体的浓度稳定。长期（六周）储存螺旋藻的最佳条件是1000勒克斯光强度和0.1倍Zarrouk培养基。

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