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首页> 外文期刊>Environmental earth sciences >Efficiency of methane fermentation of waste microalgae biomass (WMAB) collected in processes of reclamation of eutrophicated water reservoirs
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Efficiency of methane fermentation of waste microalgae biomass (WMAB) collected in processes of reclamation of eutrophicated water reservoirs

机译：富营养化水库开垦过程中收集的废微藻生物质（WMAB）甲烷发酵的效率

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摘要

The aim of the study was to determine the possibility of anaerobic digestion of waste microalgae biomass (WMAB) originating from reclamation processes of the Vistula Lagoon (Poland) and to verify the influence of taxonomic structure and chemical composition of this substrate on the efficiency of methane fermentation. The investigations were carried out in anaerobic reactors with continuous operation. A significant influence of the WMAB collection period on the concentration of organic compounds in the algae dry matter, as well as the quantity and quality of the produced biogas, was observed. Moreover, a significant influence of the increasing loading rate on the methane fermentation efficiency was found. The highest technological effects were observed with WMAB collected in summer months. The biogas production ranged from 427.33 +/- 16.69 cm(3)/g volatile solids under a load of 2.0 g volatile solids/m(3) day-351.64 +/- 24.17 cm(3)/g volatile solids under a load of 4.0 g volatile solids/m(3) day. A significantly lower biogas production efficiency was observed while fermenting algae biomass collected during spring and autumn, with Bacillariophyceae as a prevailing taxon.
机译：该研究的目的是确定厌氧消化维斯杜拉泻湖（波兰）开垦过程中产生的废微藻生物质（WMAB）的可能性，并验证该基质的分类结构和化学组成对甲烷效率的影响。发酵。研究是在厌氧反应器中连续进行的。观察到WMAB收集期对藻类干物质中有机化合物的浓度以及所产生沼气的数量和质量有重大影响。此外，发现增加的负载速率对甲烷发酵效率具有显着影响。在夏季，使用WMAB观察到了最高的技术效果。在2.0 g挥发性固体/ m（3）天的负荷下，沼气的产量范围为427.33 +/- 16.69 cm（3）/ g挥发性固体--35.64 +/- 24.17 cm（3）/ g挥发性固体的负荷下每天4.0 g挥发性固体/ m（3）。在发酵春季和秋季收集的藻类生物质时，观察到的沼气生产效率显着降低，其中以杆菌科为主要分类单位。

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