硫酸前處理對人工濕地植栽堆肥化速率提昇之研究

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標題:	硫酸前處理對人工濕地植栽堆肥化速率提昇之研究 Pretreatment of Botanical Waste from Constructed Wetland by Sulfuric Acid for Enhancement of Composting Efficiency
作者:	張煜昇
貢獻者:	環境工程與科學系林健榮
關鍵字:	纖維素蘆葦人工濕地堆肥 Cellulose Reed constructed wetland Composting
日期:	2015
上傳時間:	2015-10-21 17:08:20 (UTC+8)
摘要:	人工濕地植栽移除物產生量隨濕地之增加而遞增，部分學者進行人工濕地植栽移除物堆肥化可行性之探討，然效果不佳，推測為植栽移除物中之纖維素含量較高而不易被微生物水解所致。因此，本研究採取嘉南藥理大學人工溼地植栽移除之蘆葦，藉由不同條件之硫酸浸漬前處理，探討不同控制條件之硫酸前處理對促進人工濕地植栽移除物堆肥化之可行性。研究結果發現人工濕地植栽移除物蘆葦經不同濃度(1N、5N)及不同反應時間(1、6、24、96hr)之硫酸浸漬前處理可破壞蘆葦中之木質纖維素，其中半纖維素被有效水解，可增加堆肥過程含纖維素物質生物分解的反應面積，進而促進堆肥化反應之進行。另外，纖維素之含量也有明顯改變，惟對於木質素含量之減量效果並?顯著。此外，蘆葦堆肥成品品質分析結果如下：pH介於7.5~8.3；碳氮比介於14~18.5；水分含量介於58.4~76%；有機質介於84~89.8%；氮、磷、鉀含量分別為0.6~0.9%、0.06~0.11%、0.35~0.88%，發現除水分含量略高、磷含量稍嫌不足外，其餘皆符合農委會雜項堆肥之標準，本研究證實利用硫酸浸漬前處理可促進人工濕地植栽移除物之堆肥化可行性。此外，E組試驗操作參數(5N、1hr)可作為硫酸前處理提升人工濕地植栽移除物堆肥化速率之操作條件。 Botanical waste from constructed wetland (BWFCW) increases with the number of wetlands set up in Taiwan. Some Researches tried to evaluate the feasibility of recovery BWFCW by composting but failed and reported it resulted from the non-biodegradable composition, cellulose and lignin content in BWFCW. Therefore, in this research BWFCW-reed from constructed wetland in Chia Nan University of Pharmacy & Science was gathered and impregnated with sulfuric acid as a pretreatment process for the hydrolysis of cellulose and lignin content in BWFCW. The feasibility of pretreatment of BWFCW by sulfuric acid for the enhancement of composting efficiency was discussed. It was found that the cellulose and lignin content decreased after the pretreatment by soaking reed in different sulfuric acid concentrations with various reaction times. Furthermore, the hydrolysis of hemi-cellulose increased the specific surface area and promoted the procession of composition.In addition, the quality analysis of finished compost products is as following. The pH ranged between 7.5~8.3 and the C/N ratios were between 14~18.5. The moisture contents were in the range of 58.4% and 76%. The organic matter were analyzed to between 84~89.8%. The contents of N, P, K were 0.6~0.9%, 0.06~0.11%, and 0.35~0.88%, respectively. It was found that apart from a slightly higher moisture content and phosphorus content inadequacies, the rest characteristics of the BWFCW pretreated by sulfuric acid are in compliance with R.O.C. miscellaneous composting standard. This study confirms pretreatment of reed, one of BWFCW by impregnation with sulfuric acid could promote composting efficiency and feasibility.
關聯:	校外公開：2017-09-01,校內公開：2015-08-06，學年度：103，102頁
显示于类别:	[環境工程與科學系(所)] 博碩士論文

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