Top stories: Hypersonic weapons, acid waters, and interstellar comets

Science ◽  
2020 ◽  
Author(s):  
Catherine Matacic
Keyword(s):  
Acid Waters

Yellowstone’s acid waters: A plethora of chemical and biological activity

2006 ◽  
Vol 25 (S1) ◽  
pp. 232-233 ◽  
Author(s):  
D. Kirk Nordstrom
Keyword(s):  
Biological Activity ◽  
Acid Waters

Effects of Temperature on Development and Survival of Rainbow Trout, Salmo gairdneri, in Acid Waters

1975 ◽  
Vol 32 (4) ◽  
pp. 493-497 ◽  
Author(s):  
Wen-hwa Kwain
Keyword(s):  
Rainbow Trout ◽  
Salmo Gairdneri ◽  
Ph Values ◽  
Test Water ◽  
Effects Of Temperature ◽  
Acid Waters

Differences in mortality of rainbow trout (Salmo gairdneri) embryos were significant (P < 0.05) when the eggs were exposed to 5, 10, and 15 C and pH levels from 3.0 to 6.0. No embryos survived at pH values below4.49, regardless of the temperature. The median lethal pH values for rainbow embryos were 4.75 and 5.52 at temperatures of 10 and 5 C, respectively.Differences in lethal pH values for fingerling rainbow trout were significant (P < 0.05) when trout were exposed to four test water temperatures (5, 10, 15, and 20 C) and two acclimation temperatures (10 and 20 C). The median lethal pH values of fingerling trout were positively related to the test water temperatures and ranged from 3.86 to 4.49. Resistance of yearling trout to acid waters was higher than that of fingerlings.

scholarly journals Metal Removal from Acid Waters by an Endemic Microalga from the Atacama Desert for Water Recovery

Minerals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 378 ◽  
Author(s):  
Marcela Martínez ◽  
Yanett Leyton ◽  
Luis Cisternas ◽  
Carlos Riquelme
Keyword(s):  
Mine Drainage ◽  
Metal Removal ◽  
Atacama Desert ◽  
Mining Industry ◽  
Mining Activity ◽  
Water Recovery ◽  
Metallic Ions ◽  
Mineral Extraction ◽  
High Concentrations ◽  
Acid Waters

The environmental problems generated by waste from the mining industry in the mineral extraction for business purposes are known worldwide. The aim of this work is to evaluate the microalga Muriellopsis sp. as a potential remover of metallic ions such as copper (Cu2+), zinc (Zn2+) and iron (Fe2+), pollutants of acid mine drainage (AMD) type waters. For this, the removal of these ions was verified in artificial acid waters with high concentrations of the ions under examination. Furthermore, the removal was evaluated in waters obtained from areas contaminated by mining waste. The results showed that Muriellopsis sp. removed metals in waters with high concentrations after 4–12 h and showed tolerance to pH between 3 and 5. These results allow proposing this species as a potential bioremediator for areas contaminated by mining activity. In this work, some potential alternatives for application in damaged areas are proposed as a decontamination plan and future prevention.

Kinetics of limestone neutralization of acid waters.

1979 ◽  
Vol 13 (11) ◽  
pp. 1420-1420 ◽  
Author(s):  
Paul Barton ◽  
Terdthai Vatanatham
Keyword(s):  
Kinetics Of ◽  
Acid Waters

Field studies on fisheries in acid waters in the UK

1989 ◽  
pp. 45-66 ◽  
Author(s):  
A.W.H. Turnpenny
Keyword(s):  
Field Studies ◽  
The Uk ◽  
Acid Waters

Reclamation of acid waters using sewage sludge

1989 ◽  
Vol 57 (3) ◽  
pp. 251-274 ◽  
Author(s):  
W. Davison ◽  
C.S. Reynolds ◽  
E. Tipping ◽  
R.F. Needham
Keyword(s):  
Sewage Sludge ◽  
Acid Waters

Polymer Coagulation of Humic Acid Waters

1977 ◽  
Vol 103 (6) ◽  
pp. 989-1000
Author(s):  
James K. Edzwald ◽  
James W. Boak ◽  
James D. Haff
Keyword(s):  
Humic Acid ◽  
Acid Waters

Contribution a l'etude des sediments argileux

1946 ◽  
Vol S5-XVI (1-3) ◽  
pp. 43-55
Author(s):  
Andre Riviere
Keyword(s):  
Clay Minerals ◽  
Crystalline Rocks ◽  
Humic Materials ◽  
Ph Conditions ◽  
Acid Waters

Abstract The clay minerals produced during weathering of acid rocks by acid waters rich in humic materials generally belong to the kaolin group. Montmorillonites are usually formed by alteration of vitreous rocks. The weathering of most igneous and crystalline rocks, under normal pH conditions, usually results in the formation of minerals belonging to the illite-bravaisite group, which therefore are extremely abundant.

US state declares war on acid waters

Nature ◽  
2012 ◽  
Author(s):  
Virginia Gewin
Keyword(s):  
Acid Waters
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