การพัฒนาการผลิตก๊าซมีเทนจากน้ำเสียอุตสาหกรรมแป้งมันสำปะหลังโดยการเติมโลหะไอออน

Main Article Content

วิทิตยา รักษ์ศรี
ณัฐกานต์ แก้วยานะ
พฤกษ์ อักกะรังสี

Abstract

Utilization of biogas product from starch industry wastewater can be problematic due to relatively low productivity with methane content of less than 55 %. One of the reasons affecting methane production is nutrient deficiencies in microorganisms. This research studied the optimization of methane production from starch industry wastewater by addition of various ion metals. The potential for methane production was investigated by adding 7 ion metals including Fe, Ni, Zn, Co, Mo, Cu and Mn. The experiment included 3 groups, i.e. group 1, 2 and 3 that contained 3, 4 and all 7 types of ion metals, respectively, at different concentrations (low, medium and high) based on suggested literature. The process was conducted in batch fermentation, working volume of 400 mL, with temperature controlled at 35±2 ºC. The result shows that addition of 4 ion metals: Co, Mo, Cu and Mn at low concentration in starch industry wastewater is the most suitable condition for increasing methane in biogas. The methane production potential increased from 277±2 to 309±3 ml/gVSadded or increased 11.55% with faster production rate compared to the control by 12 days of HRT. It is therefore one alternative to enrich methane content in biogas from starch industry wastewater.

Article Details

Section
Engineering and Architecture
Author Biographies

วิทิตยา รักษ์ศรี

สาขาวิชาวิศวกรรมพลังงาน คณะวิศวกรรมศาสตร์ มหาวิทยาลัยเชียงใหม่ ถนนห้วยแก้ว ตำบลสุเทพ อำเภอเมือง จังหวัดเชียงใหม่ 50200

ณัฐกานต์ แก้วยานะ

สถาบันวิจัยและพัฒนาพลังงานนครพิงค์ มหาวิทยาลัยเชียงใหม่ ตำบลแม่เหียะ อำเภอเมือง จังหวัดเชียงใหม่ 50100

พฤกษ์ อักกะรังสี

สาขาวิชาวิศวกรรมเครื่องกล คณะวิศวกรรมศาสตร์ มหาวิทยาลัยเชียงใหม่ ถนนห้วยแก้ว ตำบลสุเทพ อำเภอเมือง จังหวัดเชียงใหม่ 50200

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