Supply chain analysis for cassava starch production: Cleaner production opportunities and benefits

บทความในวารสาร


ผู้เขียน/บรรณาธิการ


กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง


รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่งPingmuanglek P., Jakrawatana N., Gheewala S.H.

ผู้เผยแพร่Elsevier

ปีที่เผยแพร่ (ค.ศ.)2017

วารสารJournal of Cleaner Production (0959-6526)

Volume number162

หน้าแรก1075

หน้าสุดท้าย1084

จำนวนหน้า10

นอก0959-6526

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85024124829&doi=10.1016%2fj.jclepro.2017.06.148&partnerID=40&md5=b33a5c63e33a4dca529ed51fd39a8678

ภาษาEnglish-Great Britain (EN-GB)


ดูในเว็บของวิทยาศาสตร์ | ดูบนเว็บไซต์ของสำนักพิมพ์ | บทความในเว็บของวิทยาศาสตร์


บทคัดย่อ

This research assesses resource efficiency and the loss through the processes of the cassava starch production supply chain in order to find opportunities to improve resource use efficiency, reduce loss and recover resources from waste. The case study was conducted at a cassava starch company in the north of Thailand. The starch supply chain includes cassava cultivation, cassava root transport and processing of cassava starch. In the base case, 25,000 tonne of freshwater was used to produce 1000 tonne of cassava starch. Water consumption in the extraction process accounted for over 60% of freshwater use in the supply chain. The extraction and separation processes were the main hotspots because they consumed a large amount of water and a large portion of cassava mass including cassava pulp was separated out at these stages. Over 81% of energy was used in the starch plant including hot air (53%) and electricity (28%). Diesel used for crop production and transport accounted for only 6% and 12% respectively. Drying process was the hotspot in terms of energy use; the process used heat accounting for over 68% of the total energy use in the supply chain. Fortunately, hot air produced from biogas covered 100% of the hot air requirement and electricity produced from biogas covered 86% of the electricity demand in the plant. The conventional system of cassava starch production was compared with an improved one incorporating changes in practice of crop production, transport and starch production. In the improved scenario, in crop production, several nutrient management practices were applied along with fertilizer optimization. The starch plant was modified to enhance water recycling and reduce loss in order to reduce cassava root input. Starch loss reduction was achieved in the fiber and pulp separation processes where the largest starch loss occurred. The results showed that the scenario of improved technology and management could reduce consumption of all resources and emissions including cassava roots (4%), fertilizers (50%), water (30%), wastewater (40%) as well as energy (8%). All of the cassava pulp could be recovered to produce ethanol instead of using for feed with some ending up in the landfill in the base case. All wastewater could be reused for irrigation in the cassava farms instead of being evaporated. Moreover, recovering cassava pulp for ethanol production led to positive energy balance and net GHG benefit of 107 t CO2eq/y. Net GHG benefit from wastewater reuse for irrigation in the improve scenario was 3 t CO2eq. ฉ 2017 Elsevier Ltd


คำสำคัญ

Material flow analysisSupply Chain


อัพเดทล่าสุด 2023-25-09 ถึง 07:35