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Fire Prevention and Export Management of Mixed Metal Scrap
( Atsushi Terazono ),( Masahiro Oguchi ),( Aya Yoshida ),( Hiroshi Koseki ) 한국폐기물자원순환학회(구 한국폐기물학회) 2013 한국폐기물자원순환학회 심포지움 Vol.2013 No.2
Over one million tons of mixed metal scrap is annually exported from Japan to China for recycling purpose. Mixed metal scrap usually contains miscellaneous electric and electronic equipment including hazardous substances and sometimes causes fire. Regarding fires of mixed metal scrap, there are several cases of fire in ports or offshore in Japan recently. Fire incidents are often found at various stockyards as well. In spite of our investigations on some fire sites, the exact cause of the fire is hardly determined. We assume that the fire proceeds in two stages: fire breakout and fire spread. Fire breakout may be caused by lead acid battery, ignition from physical impact between metals, heat accumulation and/or others. Fire spread is easily caused by combustion of oil, plastic and other organic materials which contained in mixed metal scrap. Regarding hazardous substances control, Basel Convention and related domestic law restricts the exportation of recyclable resources when the level of hazardous substances contained in mixed metal scrap exceeds the criteria. However, since the mixed metal scrap is composed of heterogeneous materials, without detail chemical analysis of hazardous substances level, customs inspectors cannot judge hazardous waste or not. Therefore, we propose to create some negative list of electric and electronic equipment for simple clarification for export control.
Material Recovery by Informal E-waste Processing in the Philippines
( Atsushi Terazono ),( Masahiro Oguchi ),( Shunsuke Kuzuhara ),( Aya Yoshida ),( Ruji P. Medina ),( Florencio C. Ballesteros Jr ) 한국폐기물자원순환학회(구 한국폐기물학회) 2015 한국폐기물자원순환학회 3RINCs초록집 Vol.2015 No.-
Waste electrical and electronic equipment, i.e. e-waste, is a great concern among researchers and policymakers, due to its potential as a source of serious environmental pollution. In order to understand processes and issues by informal e-waste processing in the Philippines, informal smelting process for gold was clarified from the field survey at several smelters. Metal recovery tests were conducted at one site with actual e-waste samples. Three types of e-wastes were tested: computer memory boards, boards for hard disk drives, and boards for video cards. Among three e-waste samples tested, memory boards contained the highest amount of gold. Since the gold content of non-segregated e-waste is not high, pre-processing is essential for gold extraction to raise cost-effectiveness. With regard to health and environmental effect, many issues were found including protective equipment for workers.
Kazue Nakata,Yoshie Taniguchi,Noriko Yoshioka,Aya Yoshida,Hiroyuki Inagawa,Takeru Nakamoto,Hiroshi Yoshimura,Shin-ichiro Miyake,Chie Kohchi,Masahide Kuroki,Gen-Ichiro Soma 한국영양학회 2011 Nutrition Research and Practice Vol.5 No.5
At present, lifestyle-related diseases are one of the most critical health issues worldwide. It has been reported that lipopolysaccharide derived from a Gram-negative bacteria (IP-PA1) symbiotic with wheat exhibited several advantageous biological effects, such as the reduction of plasma glucose levels in NOD mice and low-density lipoprotein (LDL) levels in WHHL rabbits. In this study, the beneficial effects on plasma glucose and lipids of a tea (SI tea) consisting of IP-PA1 and Salacia (which contains an inhibitor of α-glucosidase) were investigated in the KK-Ay/TaJcl type 2 diabetic model mice and in human subjects with premetabolic syndrome in a double-blind, randomized study. SI tea significantly decreased plasma glucose levels in KK-Ay/TaJcl mice. A clinical trial of SI tea was performed with 41 subjects between the ages of 40 and 69, who belonged either to a high plasma glucose group (HG: FPG 100-125 mg/dl) or to a hyperlipidemia group (HL: TG ≥150 mg/dl, or LDL ≥120 mg/dl, or HDL < 40 mg/dl). These subjects ingested either Salacia without IP-PA1 (the control) or SI tea. Blood samples were collected at 0, 30, and 60 days after initiating SI tea treatment, and were measured for FPG, HbA1c, TG, LDL, and HDL. These results showed that SI tea reduced FPG and HbA1c more rapidly than the control in the HL group, and also significantly improved LDL and HDL levels in the HG group. Thus, SI tea may be helpful in preventing lifestyle-related diseases.
Nakata, Kazue,Taniguchi, Yoshie,Yoshioka, Noriko,Yoshida, Aya,Inagawa, Hiroyuki,Nakamoto, Takeru,Yoshimura, Hiroshi,Miyake, Shin-Ichiro,Kohchi, Chie,Kuroki, Masahide,Soma, Gen-Ichiro The Korean Nutrition Society 2011 Nutrition Research and Practice Vol. No.
At present, lifestyle-related diseases are one of the most critical health issues worldwide. It has been reported that lipopolysaccharide derived from a Gram-negative bacteria (IP-PA1) symbiotic with wheat exhibited several advantageous biological effects, such as the reduction of plasma glucose levels in NOD mice and low-density lipoprotein (LDL) levels in WHHL rabbits. In this study, the beneficial effects on plasma glucose and lipids of a tea (SI tea) consisting of IP-PA1 and Salacia (which contains an inhibitor of ${\alpha}$-glucosidase) were investigated in the KK-Ay/TaJcl type 2 diabetic model mice and in human subjects with premetabolic syndrome in a double-blind, randomized study. S1 tea significantly decreased plasma glucose levels in KK-Ay/TaJcl mice. A clinical trial of SI tea was performed with 41 subjects between the ages of 40 and 69, who belonged either to a high plasma glucose group (HG: FPG 100-125 mg/dl) or to a hyperlipidemia group (HL: TG ${\geq}$ 150 mg/dl, or LDL ${\geq}$ 120 mg/dl, or HDL <40 mg/dl). These subjects ingested either Salacia without IP-PA1 (the control) or SI tea. Blood samples were collected at 0, 30, and 60 days after initiating SI tea treatment, and were measured for FPG, HbA1c, TG, LDL, and HDL. These results showed that SI tea reduced FPG and HbA1c more rapidly than the control in the HL group, and also significantly improved LDL and HDL levels in the HG group. Thus, SI tea may be helpful in preventing lifestyle-related diseases.