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TY  - JOUR
AU  - Kivaisi , Amelia
AU  - Mshandete, Anthony
PY  - 2017/12/31
Y2  - 2025/07/26
TI  - Exploring technological strategies for valorization of solid sisal waste: A research review
JF  - Tanzania Journal of Science
JA  - Tanz. J. Sci.
VL  - 43
IS  - 1
SE  - Articles
DO  - 
UR  - http://www.tjs.udsm.ac.tz/index.php/tjs/article/view/268
SP  - 47-61
AB  - &lt;p&gt;&lt;em&gt;The sisal industry in Tanzania generates large amounts of waste which&lt;/em&gt;&lt;em&gt; is an un-tapped bioresource. &lt;/em&gt;&lt;em&gt;Research was undertaken &lt;/em&gt;&lt;em&gt;to establish appropriate technologies &amp;nbsp;for its valorisation to mushrooms, biogas and biogas manure (BGM).Physical and biological pre-treatments achieved methane yield increments of 23-30% whereas co-digestion with fish waste achieved methane yield increments of 59-94%. Sisal fibre waste was demonstrated to be a novel biofilm-carrier for treating sisal pulp leachate. With a loading rate of 9.0 kgVS/m&lt;sup&gt;3&lt;/sup&gt;/day, the packed-bed bioreactor was operated without process stress. Sisal decortication waste (SLDW) and sisal boles (SBW) were found to be suitable for oyster mushroom cultivation. With water-pretreated SBW and saline-SLDW, biological efficiencies of &amp;nbsp;26-86% were obtained. SBW was utilized for commercial-scale mushroom cultivation and yielded 250kg/ton of wet substrate. Residues of mushroom cultivation (SMS) were anaerobically co-digested with cow dung manure and yielded 230-300L CH&lt;sub&gt;4&lt;/sub&gt;/kg VS&lt;sub&gt;added&lt;/sub&gt; which indicated &amp;nbsp;the potential of SMS for AD.Co-digestion of SLDW with cow dung manure in a 10m&lt;sup&gt;3&lt;/sup&gt; continuous stirred tank reactor gave about 400 litres CH&lt;sub&gt;4&lt;/sub&gt;/ m&lt;sup&gt;3&lt;/sup&gt;/day, and 260 L/day of BGM &amp;nbsp;which was superior to NPK fertilizer. In conclusion, sisal waste has potential for valorisation, and integrating mushroom and biogas production for better economics&amp;nbsp; is feasible. &lt;/em&gt;&lt;/p&gt;&lt;p&gt;&lt;em&gt;The sisal industry in Tanzania generates large amounts of waste which&lt;/em&gt;&lt;em&gt; is an un-tapped bioresource. &lt;/em&gt;&lt;em&gt;Research was undertaken &lt;/em&gt;&lt;em&gt;to establish appropriate technologies &amp;nbsp;for its valorisation to mushrooms, biogas and biogas manure (BGM).Physical and biological pre-treatments achieved methane yield increments of 23-30% whereas co-digestion with fish waste achieved methane yield increments of 59-94%. Sisal fibre waste was demonstrated to be a novel biofilm-carrier for treating sisal pulp leachate. With a loading rate of 9.0 kgVS/m&lt;sup&gt;3&lt;/sup&gt;/day, the packed-bed bioreactor was operated without process stress. Sisal decortication waste (SLDW) and sisal boles (SBW) were found to be suitable for oyster mushroom cultivation. With water-pretreated SBW and saline-SLDW, biological efficiencies of &amp;nbsp;26-86% were obtained. SBW was utilized for commercial-scale mushroom cultivation and yielded 250kg/ton of wet substrate. Residues of mushroom cultivation (SMS) were anaerobically co-digested with cow dung manure and yielded 230-300L CH&lt;sub&gt;4&lt;/sub&gt;/kg VS&lt;sub&gt;added&lt;/sub&gt; which indicated &amp;nbsp;the potential of SMS for AD.Co-digestion of SLDW with cow dung manure in a 10m&lt;sup&gt;3&lt;/sup&gt; continuous stirred tank reactor gave about 400 litres CH&lt;sub&gt;4&lt;/sub&gt;/ m&lt;sup&gt;3&lt;/sup&gt;/day, and 260 L/day of BGM &amp;nbsp;which was superior to NPK fertilizer. In conclusion, sisal waste has potential for valorisation, and integrating mushroom and biogas production for better economics&amp;nbsp; is feasible.&lt;/em&gt;&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Key words: &lt;/strong&gt;sisal waste, anaerobic digestion, mushrooms, valorisation&lt;/p&gt;
ER  -