scholarly journals A practical application for monitoring methane in ambient air at waste disposal facillities using a portable open path analyzer

2019 ◽  
pp. 615-621
Author(s):  
Noboru Tanikawa ◽  
Toru Furuichi ◽  
Kazuei Ishii ◽  
Kohji Matsuo
Keyword(s):  
Greenhouse Gas ◽  
Waste Disposal ◽  
Ambient Air ◽  
Leak Detector ◽  
Practical Application ◽  
Disposal Facility ◽  
Gas Leak ◽  
Landfill Sites ◽  
Composting Facilities ◽  
Composting Facility

It is well known that methane (CH4) is a greenhouse gas, and one of the main gases emittedfrom landfills, CH4 is also emitted from biogasification facilities and composting facilities, Anew method to monitor CH4 in ambient air has been developed using a portable open pathmethane analyzer (POMA) that is retailed as an urban gas leak detector. In this study, we haveinvestigated a practical application of a POMA in the field, and the characteristics of CH4emissions at landfill sites, biogasification facilities, and a composting facility,It is clear that this new method is convenient, and can be used to monitor the averageconcentration of CH4 in ambient air at a waste disposal facility, such as a landfill site, acomposting facility, or a biogasification facility, The concentration of CH4 in ambient air atlandfill sites, a composting facility, and biogasification facilities were found to be 2-30, 2-13,and 3-13 ppm, respectively,

Mining of Landfills for the Recovery of Resources

2016 ◽  
Author(s):  
Chris Jungkunz
Keyword(s):  
Solid Waste ◽  
Waste Disposal ◽  
Storage Capacity ◽  
Solid Waste Disposal ◽  
Operating Life ◽  
Landfill Mining ◽  
Production Processes ◽  
Disposal Facility ◽  
Landfill Sites ◽  
Cover Material

There are many opportunities associated with the excavating of landfill sites. Many landfills were filled prior to large efforts in recycling and diversion tactics, which leads to many useful and valuable materials being hidden away from use. The prospect of reclaiming materials that were once buried relieves the need to use as much virgin materials for manufacturing and production processes. Organic materials that are recovered through landfill mining can be used to generate energy, or be utilized as cover material for the disposal facility. Through the removal of materials, more capacity can be generated within solid waste disposal systems, which can prolong the operating life of the facility, reduce the need to transport waste to other regions for disposal and ensure a longer period for which new landfills can be sited. Landfill mining is an option to recover valuable materials, storage capacity and generate energy but must be done where it is economically, socially and environmentally appropriate.

scholarly journals UPPER FILLER MATERIAL APPLIED IN CAVERN TYPE RADIOACTIVE WASTE DISPOSAL FACILITY

2016 ◽  
Vol 72 (3) ◽  
pp. 234-248
Author(s):  
Shin-ichi TAKECHI ◽  
Toshiyuki SASAKI ◽  
Kosuke YOKOZEKI ◽  
Hiroshi SHIMBO ◽  
Yoshihiro AKIYAMA ◽  
...  
Keyword(s):  
Radioactive Waste ◽  
Waste Disposal ◽  
Radioactive Waste Disposal ◽  
Filler Material ◽  
Disposal Facility

Twenty-Year Performance of a Mixed LLRW/RCRA Waste Disposal Facility

2020 ◽  
Author(s):  
Rudolph Bonaparte ◽  
Beth A. Gross ◽  
Ranjiv Gupta ◽  
John F. Beech ◽  
Leslie M. Griffin ◽  
...  
Keyword(s):  
Waste Disposal ◽  
Disposal Facility

scholarly journals Perancangan Detektor Kebocoran Gas LPG Berbasis Arduino yang Terhubung dengan Smartphone

2021 ◽  
Vol 3 (1) ◽  
pp. 65
Author(s):  
Ade Mutaqin ◽  
Erwin Sitompul
Keyword(s):  
Gas Sensor ◽  
Early Warning ◽  
Leak Detector ◽  
Liquefied Petroleum Gas ◽  
Measurement Result ◽  
Gas Leakage ◽  
Gas Leak ◽  
High Level ◽  
Air Circulation

LPG (Liquefied Petroleum Gas) has become the fuel for cooking for most households in Indonesia. The use of LPG for cooking requires high level of caution, due to the danger that may arise from gas leakage. If the molecules of flammable LPG gas are present in the air at a certain concentration and there is a triggerring factor in the form of flame or sparks, explosion and fire may occur. To prevent disasters caused by a LPG gas leakage, the author proposed an Arduino-based LPG gas leak detector (GLD). The GLD is equipped with a MQ-2 gas sensor, capable of measuring the LPG concentration in air in units of parts per million (ppm). Based on the measurement result, the GLD provides an early warning of LPG leakage through 3 condition levels: Normal, Alert, and Danger. Each condition level is characterized by the activation of LED indicators, a miniature air circulation fan , and a buzzer. Alert warning is released when the sensor reads more than 400 ppm (2.05% of LPG Lower Explosive Level). Danger warning is given at 800 ppm (4.10% of LPG Lower Explosive Level) or higher reading. An HC-06 Bluetooth module creates a wireless connection between the GLD and a smartphone. Through an application created on Blynk platform, the smartphone can monitor the LPG concentration at a distance of 10 m from the GLD. The GLD is tested and succeeded to detect gases coming from an LPG cylinder and from a gas lighter. The GLD also runs perfectly for the designed early warning scheme.

Sign in / Sign up

Export Citation Format

Share Document