je.st
news
Tag: conditions
Research Paper: Investigating the Relationship between Gypsum Purity and Hydrogen Sulfide Production under Anaerobic Conditions
2014-09-12 18:23:00| Chemical Processing
Calcium Sulfate (CaSO4) more commonly known as gypsum is a naturally occurring white crystalline mineral that has many different uses and applications. Gypsum in its hydrated form (CaSO42H2O) is used in the construction industry for fire resistance in buildings. Outside of the construction industry, gypsum is used in the food and fertilizer industry for calcium and sulfate fortification respectively. When gypsum is no longer usable, it is deposited in construction and demolition(C&D) landfills where anaerobic (low oxygen) conditions and the presence of sulfate-reducing bacteria promote the decomposition of wallboard/gypsum into hydrogen sulfide gas (H2S). Due to local and state regulations on odor control, these C&D sites monitor their fill for hydrogen sulfide gas. This paper will couple two methods of analysis to observe the relationship between the purity of gypsum (calcium sulfate dihydrate) and hydrogen sulfide concentration as a sample is fermented by sulfate-reducing agents (e.g. bacteria). The scope of this research may be beneficial for industrial hygienists concerned with C&D landfill H2S levels or for incoming gypsum processing plants who suspect poor quality gypsum.
Tags: under
conditions
research
paper
Stainless Steel LED Lights withstand harsh conditions.
2014-09-03 14:31:36| Industrial Newsroom - All News for Today
Available with polycarbonate window or tempered borosilicate glass window, Series WLC60SS features corrosion-resistant 316L housing to withstand caustic solutions, acids, and detergents as well as high-pressure washdown and high-temperature environments while remaining resistant to vibration and shock. Operating from input voltage of 12–30 Vdc, lights include advanced glare-reducing optics, 4 eco-mode dimming states, and integral 4-pin M12 Euro-style quick disconnect connector. This story is related to the following:Dimmable LED Lights |
Tags: conditions
led
steel
lights
Late-season growing conditions could impact corn, soybean yields
2014-09-02 17:11:00| Corn & Soybean Digest
A big challenge in many areas of the Upper Midwest is continued cooler than normal temperatures, and lower-than-normal accumulation of growing degree units (GDUs). This raises concerns that some of the 2014 corn and soybean crop may not reach maturity prior to the first killing frost, especially in areas with very late planting dates this past spring. Focus on Ag read more
Tags: conditions
impact
growing
corn
T1 E1 Boards monitor line conditions.
2014-09-02 14:31:59| Industrial Newsroom - All News for Today
Featuring 16 Receive-only ports and PCIe (x1) bus interface, tScan16™ T1 E1 Analysis Hardware supports voice and data capture, monitoring, and analysis. Boards are suitable for monitoring T1 E1 line conditions such as frame errors, bipolar violations, alarms, frequency, and power level. Available with GUI for Windows® 7 and 8 operating systems, boards also support analysis of ISDN, SS7, Frame Relay and Multilink Frame Relay, PPP and Multilink PPP, HDLC, and other protocols. This story is related to the following:Test and Measuring InstrumentsSearch for suppliers of: Evaluation Boards
Tags: conditions
line
monitor
boards
UP sugar mills reject state government aid and conditions
2014-09-02 09:53:15| Sugar Industry News
New Delhi, Sep 1 (IANS) Beleaguered private sugar mills in Uttar Pradesh Monday rejected the assistance of Rs.6 per quintal of cane announced by the state government as inadequate, saying they are unable to meet the aid conditions.
Tags: conditions
state
government
aid
Sites : [82] [83] [84] [85] [86] [87] [88] [89] [90] [91] [92] [93] [94] [95] [96] [97] [98] [99] [100] [101] next »