Leaching behavior of silver sulfide in the sodium thiosulfate-copper sulfate- sodium metabisulfite system

2021 ◽  
Vol 174 ◽  
pp. 107275
Author(s):  
Seyed Hadi Banijamali ◽  
Shahram Raygan ◽  
Ahmad Ali Amadeh
2017 ◽  
Vol 58 (7) ◽  
pp. 1421-1428
Author(s):  
K. S. Murasheva ◽  
◽  
S. V. Saikova ◽  
S. A. Vorobiev ◽  
A. S. Romanchenko ◽  
...  

2017 ◽  
Vol 58 (7) ◽  
pp. 1383-1390 ◽  
Author(s):  
K. S. Murasheva ◽  
S. V. Saikova ◽  
S. A. Vorobiev ◽  
A. S. Romanchenko ◽  
Yu. L. Mikhlin

2010 ◽  
Vol 45 (3) ◽  
pp. 353-363 ◽  
Author(s):  
Onita D. Basu ◽  
Sarah M. Dorner

Abstract Municipal wastewater effluents are one of the largest single effluent discharges in Canada. Chlorination of wastewater effluents is a widespread practice throughout Canada (excluding Quebec), the United States and parts of Europe. As chlorine in wastewater effluents is toxic to aquatic biota, dechlorination chemicals may be used to reduce residual chlorine concentrations to below 0.02 mg/L (as Cl2) as mandated by Canadian law. However, the potential aquatic health impacts of residual dechlorination chemicals must also be determined. Seven dechlorination agents (ascorbic acid, hydrogen peroxide, calcium thiosulfate, sodium sulfite, sodium thiosulfate, sodium metabisulfite, sodium bisulfite) were evaluated with regards to their 48 hour acute toxicity. Tests were conducted using Daphnia magna to identify the acute (48 h) toxicity affects of the dechlorination chemicals over a range of concentrations (0-200 mg/L). Sodium sulfite and thiosulfate were found to have the least aquatic mortality effects while hydrogen peroxide and calcium thiosulfate had the most deleterious effects.


Author(s):  
Robyn Rufner ◽  
Gerhard W. Hacker ◽  
Michele Forte ◽  
Nancyleigh E. Carson ◽  
Cristina Xenachis ◽  
...  

The use of immunogold-silver staining (IGSS) to enhance label penetration and Localization for immunocytochemistry or in situ hybridization utilizing a variety of metallic salts has been documented. In this morphological study, the effects of silver acetate, silver lactate and silver nitrate were evaluated for immunogold-labeling of a trial natriuretic peptides (ANP) in rat right atria.Eight Wistar Kyoto retired breeders were sedated with pentobarbital, perfused with either 4% paraformaldehyde (LM) or Karnovsky's fixative (EM), and right atria were dissected, processed, embedded in paraffin or epon, respectively and sectioned according to conventional methods. For light microscopy, an indirect IGSS method according to Hacker (3) was performed. Paraffin sections on glass slides were washed in ddH2O, immersed in Lugol's iodine, washed in ddH2O and treated with 2.5% aqueous sodium thiosulfate for 20 sec. After additional washes in ddH2O and TBS-0.1% fish gelatin, 10% normal goat serum (PBS with 1% BSA) was applied for 20 min before an overnight incubation at 4°C with a polyclonal α-ANP primary antibody (Peninsula Labs, 1:1000 in TBS/BSA).


Author(s):  
L. L. Sutter ◽  
G. R. Dewey ◽  
J. F. Sandell

Municipal waste combustion typically involves both energy recovery as well as volume reduction of municipal solid waste prior to landfilling. However, due to environmental concerns, municipal waste combustion (MWC) has not been a widely accepted practice. A primary concern is the leaching behavior of MWC ash when it is stored in a landfill. The ash consists of a finely divided fly ash fraction (10% by volume) and a coarser bottom ash (90% by volume). Typically, MWC fly ash fails tests used to evaluate leaching behavior due to high amounts of soluble lead and cadmium species. The focus of this study was to identify specific lead bearing phases in MWC fly ash. Detailed information regarding lead speciation is necessary to completely understand the leaching behavior of MWC ash.


2003 ◽  
Vol 107 ◽  
pp. 1333-1336 ◽  
Author(s):  
E. Van Hullebusch ◽  
P. Chatenet ◽  
V. Deluchat ◽  
P. M. Chazal ◽  
D. Froissard ◽  
...  
Keyword(s):  

2018 ◽  
Vol 1 (01) ◽  
pp. 18-21
Author(s):  
Yulian Syahputri ◽  
Diana Widiastuti

Dragon fruit skin, waste material (dragon fruit waste), will have a profitable sale value if it can be used as a food raw material. Dragon fruit skin waste contains relatively high dietary fiber so it can be used as a food raw material. This study aims to utilize dragon fruit skin waste for the manufacture of dragon fruit skin flour as an alternative food source. Some tests are made on white-meat dragon fruit skin, red-meat dragon fruit skin and super red dragon fruit skin. The preliminary study is the soaking of the three types of dragon fruit skin in two solutions, namely 0.1% sodium citrate and 0.1% sodium metabisulfite to prevent the browning effect on flour. Dragon fruit skin flour from the soaking with both solutions is then characterized physically, including its texture, color, flavor and rendement. The best physical characterization is followed by chemical characterization, including the contents of water, ash, protein, fat, carbohydrate, dietary fiber, minerals (Fe, Na, K, Ca and P), and also microbiological characterization of Escherichia coli, molds and Bacillus cereus. The chemical and microbiological characterization shows that the red-meat dragon fruit skin flour has better results than the white-meat and super red dragon fruit skin flour does. The red-meat dragon fruit skin flour contains 8.80% water, 0.20% ash, 2.35% fat, 7.69%, protein, 68,29% carbohydrate and 28,72% dietary fiber as well as 4.40 mg K, 8.76 mg Na , 0.65 mg Fe , 10.20 mg Ca and 32.58 mg P. Keywords: Waste, Dragon Fruit Skin, Dragon Fruit Skin Powder, Alternative Food Source


2017 ◽  
Vol 13 (3) ◽  
pp. 81-94
Author(s):  
Tariq A. AL- Dhahir ◽  
◽  
Nabeel A. Bakr ◽  
Saja B. Mohammed

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