Question and answer
5. What can be done to prevent mine drainage from damaging the ecosystem?
Acid mine drainage (AMD) causes environmental pollution that affects many countries having historic or current mining industries. [ Preventing the formation or the migration of AMD from its source is generally considered to be the preferable option, although this is not feasible in many locations, and in such cases, it is necessary to collect, treat, and discharge mine water. There are various
options available for remediating AMD, which may be divided into those that use either chemical or biological mechanisms to neutralise AMD and remove metals from solution. Both abiotic and biological systems include those that are classed as bactiveQ(i.e., require continuous inputs of resources to sustain the process) or bpassiveQ(i.e., require relatively little resource input once in operation). This review describes the current abiotic and bioremediative strategies that are currently used to mitigate AMD and compares the strengths and weaknesses of each. New and emerging technologies are also described. In addition, the factors that currently influence the selection of a remediation system, and how these criteria may change in the future, are discussed. D 2004 Elsevier B.V. All rights reserved. Acidic sulfur-rich wastewaters are the by-products of a variety of industrial operations such as galvanic processing and the scrubbing of flue gases at power plants (Johnson, 2000). The major producer of such effluents is, however, the mining industry. Waters draining active and, in particular, abandoned mines and mine wastes are often net acidic (sometimes extremely so). Such waters typically pose an additional risk to the environment by the fact that they often contain elevated concentrations of metals (iron, aluminium and manganese, and possibly other heavy metals) and metalloids (of which arsenic is generally of greatest concern). In 1989, it was estimated that ca. 19,300 km of streams and rivers, and ca. ]
Ask a question
Not a good answer? Get an answer now. (FREE)
Original conversation
User: 5. What can be done to prevent mine drainage from damaging the ecosystem?

Weegy: Acid mine drainage (AMD) causes environmental pollution that affects many countries having historic or current mining industries. [ Preventing the formation or the migration of AMD from its source is generally considered to be the preferable option, although this is not feasible in many locations, and in such cases, it is necessary to collect, treat, and discharge mine water. There are various options available for remediating AMD, which may be divided into those that use either chemical or biological mechanisms to neutralise AMD and remove metals from solution. Both abiotic and biological systems include those that are classed as bactiveQ(i.e., require continuous inputs of resources to sustain the process) or bpassiveQ(i.e., require relatively little resource input once in operation). This review describes the current abiotic and bioremediative strategies that are currently used to mitigate AMD and compares the strengths and weaknesses of each. New and emerging technologies are also described. In addition, the factors that currently influence the selection of a remediation system, and how these criteria may change in the future, are discussed. D 2004 Elsevier B.V. All rights reserved. Acidic sulfur-rich wastewaters are the by-products of a variety of industrial operations such as galvanic processing and the scrubbing of flue gases at power plants (Johnson, 2000). The major producer of such effluents is, however, the mining industry. Waters draining active and, in particular, abandoned mines and mine wastes are often net acidic (sometimes extremely so). Such waters typically pose an additional risk to the environment by the fact that they often contain elevated concentrations of metals (iron, aluminium and manganese, and possibly other heavy metals) and metalloids (of which arsenic is generally of greatest concern). In 1989, it was estimated that ca. 19,300 km of streams and rivers, and ca. ]
marissa-sarol|Points 111|

User: what are the abiotic strategies to mitigate the AMD

Weegy: The northeastern region is considered to be the richest reservoir of genetic variability of large number of horticultural crops. Changes in weather parameters have profound impacts on the livelihood of people and their ecosystem as whole. [ These problems can be mitigated by the selection of suitable cultivars of fruits, vegetables and spices crops which have the potential to grow under diverse weather conditions. Protected cultivation of high-value vegetable crops like tomato, capsicum and cucumber provides means for round-the-year production with protection against low temperature and heavy rains. Drip irrigation is the most suitable system for efficient utilization of water especially for the horticultural crops. The appropriate techniques to overcome the impact of climate change are necessary to protect our biodiversity and for feeding the fast-growing population. Awareness and educational programmes for the growers, modification of present horticultural practices and greater use of greenhouse technology are some of the solutions to minimize the effect of climate change. ]
Expert answered|balongskypas|Points 60|

Question
Asked 176 days ago|10/28/2013 11:54:25 PM
0 Answers/Comments
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
5. What can be done to prevent mine drainage from damaging the ecosystem?
Weegy: Acid mine drainage (AMD) causes environmental pollution that affects many countries having historic or current mining industries. [ Preventing the formation or the migration of AMD from its source is generally considered to be the preferable option, although this is not feasible in many locations, and in such cases, it is necessary to collect, treat, and discharge mine water. There are various options available for remediating AMD, which ... (More)
Question
All Categories|No Subcategories|Expert Answered
Asked 176 days ago|10/28/2013 8:51:51 PM
0 Answers/Comments
WHAT ARE THE ABIOTIC PROCESS TOMITIGATE THE CONCENTRATION OF AMD IN THE ECOSYSTEMS
Weegy: Methods[edit] Lime neutralization[edit] By far, the most commonly used commercial process for treating acid mine drainage is lime precipitation in a high-density sludge (HDS) process. [ In this application, a slurry of lime is dispersed into a tank containing acid mine drainage and recycled sludge to increase water pH about ~9. At this pH, most toxic metals become insoluble and precipitate, aided by the presence of recycled sludge. ... (More)
Question
All Categories|No Subcategories|Expert Answered
Asked 176 days ago|10/28/2013 11:58:13 PM
0 Answers/Comments
what happens when you place pyrite in water?
Weegy: Pyrite is not resistant in the weathering environment. It fairly quickly breaks up in contact with oxygen and water. This reaction oxidizes the iron and releases sulfur as a sulfuric acid. [ This reaction has given pyrite a negative reputation as an environmentally very problematic mineral. ] (More)
Question
All Categories|No Subcategories|Expert Answered
Asked 175 days ago|10/29/2013 6:44:25 PM
0 Answers/Comments
Home | Contact | Terms | Privacy | Social | ©2013 Purple Inc.
Ad
Popular Conversations
The question below refers to the selection "By the Waters of ...
Weegy: The question below refers to the selection "By the Waters of Babylon." The many lights that John sees in his ...
4/22/2014 8:51:50 AM| 5 Answers
Identify the function of the italicized noun clause. Cousin Jake's ...
Weegy: The function of the noun clause "that he run the mile in less than four minutes" is a NOUN PHRASE COMPLEMENT.
4/22/2014 9:51:58 AM| 4 Answers
Which sentence uses a verb that agrees with its compound subject? ...
Weegy: Which sentence uses a verb that agrees with its compound subject? A. Pumpkins and grapes are grown on vines. ...
4/22/2014 12:24:12 PM| 4 Answers
(x 2 + 4x + 8)(2x - 1)
Weegy: Simplify: 2x - 8 = 2x - 3. As you can see, there are no values of x that make the equation true. Subtracting 2x ...
4/22/2014 7:19:21 AM| 3 Answers
Ethiopians learned Christian traditions from ___________. a. their ...
Weegy: Ethiopians learned Christian traditions from the Hebrews.
4/22/2014 7:36:55 AM| 3 Answers
If x varies inversely with y and x = 4 when y = 9, find x when y = 6. ...
Weegy: (3x-2) squared is 9x^2 - 12x + 4. User: Find the general term for the sequence -3, 1, 5, 9, .... Weegy: -6
4/22/2014 8:28:58 AM| 3 Answers
How many terms are in the expression shown below? x2 - 10xy + 3y + ...
Weegy: There are 5 terms in the expression x2 - 10xy + 3y + y2 - 1. User: Find the value of 21 - 18 ÷ 3 · ...
4/22/2014 1:25:53 PM| 3 Answers
Which of the following represented loyalty to church before loyalty ...
Weegy: D. User: The Glorious Revolution took place in response to the __________. a. actions of James II c. Articles ...
4/22/2014 4:08:32 AM| 2 Answers
At the incident scene, who handles media inquires? A. Public ...
Weegy: At the incident scene, who handles media inquires? D. Communications Officer User: The Liaison Officer: A. ...
4/22/2014 6:09:11 AM| 2 Answers
When should an HIV positive person share his or her status with ...
Weegy: When the person is ready an HIV positive person share his or her status with friends and family.
4/22/2014 6:32:20 AM| 2 Answers
Joe denied being the father of Lisa. Lisa's mom took Joe to court ...
Weegy: Joe denied being the father of Lisa. Lisa's mom took Joe to court to prove he is Lisa's biological father. The ...
4/22/2014 6:37:34 AM| 2 Answers
Weegy Stuff
S
L
P
C
L
P
C
Points 1748 [Total 7135]| Ratings 0| Comments 1748| Invitations 0|Offline
S
L
P
C
P
C
1
L
P
C
Points 1717 [Total 9598]| Ratings 0| Comments 1717| Invitations 0|Offline
S
1
L
C
L
Points 894 [Total 5697]| Ratings 4| Comments 854| Invitations 0|Offline
S
1
L
1
L
P
Points 550 [Total 7227]| Ratings 2| Comments 530| Invitations 0|Offline
S
L
Points 478 [Total 2925]| Ratings 2| Comments 448| Invitations 1|Offline
S
L
1
1
1
Points 271 [Total 3537]| Ratings 7| Comments 201| Invitations 0|Offline
S
R
Points 267 [Total 379]| Ratings 6| Comments 187| Invitations 2|Offline
S
Points 198 [Total 198]| Ratings 6| Comments 118| Invitations 2|Online
S
Points 170 [Total 586]| Ratings 0| Comments 170| Invitations 0|Offline
S
1
Points 155 [Total 485]| Ratings 3| Comments 125| Invitations 0|Online