water quality monitoring n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Water Quality Monitoring PowerPoint Presentation
Download Presentation
Water Quality Monitoring

Loading in 2 Seconds...

play fullscreen
1 / 18

Water Quality Monitoring - PowerPoint PPT Presentation


  • 137 Views
  • Uploaded on

Water Quality Monitoring. Nush , Mai and Vandy. Content. Mining & Water Quality Deforestation & Water Quality Conclusion & Recommendation. Mercury and Cyanide from Gold Mining. Used of Mercury and Cyanide in Gold Mining.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Water Quality Monitoring' - lamya


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
water quality monitoring

Water Quality Monitoring

Nush, Mai and Vandy

content
Content

Mining & Water Quality

Deforestation & Water Quality

Conclusion & Recommendation

used of mercury and cyanide in gold mining
Used of Mercury and Cyanide in Gold Mining
  • Gold will dissolve in liquid mercury and this process was extensively used for recovery of gold from ground area
  • Cyanide solutions used to dissolve and extract gold
  • Mercury and Cyanide often eroded into streams or were deposited directly into streams
  • Mercury and Cyanide is likewise harmful to wildlife such as mammals, birds, and fish.
  • Biomagnifications
mercury and cyanide legacy from historic mines
Mercury and Cyanide Legacy from Historic Mines
  • Elevated concentrations of mercury and cyanide in sediments
  • Elevated concentrations of mercury and cyanide in fish, birds and other wildlife
  • Restrictions on the amount of fish that should be consumed by humans
toxic issues with mercury and cyanide
Toxic Issues with Mercury and Cyanide
  • Neurotoxicity
  • Birth defects
  • Kidney function
byproduct mercury production
Byproduct Mercury Production

The Chemistry

Au + O2 + CN- Au(CN)2- (water soluble)

Hg + O2 + CN- Hg(CN)2 + Hg(CN)42-

(water soluble)

Both the gold and mercury cyanide complexes are trapped on carbon and recovered during processing

how is byproduct effected to human health
How is Byproduct effected to human health
  • Biomagnifications in aquatic life to human
  • Release to ground water
  • Evaporated to the atmosphere
how is byproduct managed
How is Byproduct Managed
  • Sold or transferred to three primary mercury recyclers
  • Management and transfer is conducted in a safe and reliable manner
slide11
The Cause of harmful water quality

Logging

Deforestation

Plantation

slide12
Impacts of Deforestation

Less water and Fish in dry season

slide14
Conclusion- WQ still questionable: Lack of equipment & Instruments - Long term effect unidentified: recovery plan after the project completion-
recommendations
Recommendations
  • More mercury and cyanide should be required for water quality monitoring.
  • Should cover the bottom of the reservoir pond by plastic or set up the proper pond to reduce the chance that Mercury and Cyanide will be release to ground water
  • Do not allow people to do fishing and eat any aquatic life from that pond
  • Try to reuse that water again in the processing
recommendations1
Recommendations
  • Law enforcement to combat with illegal logging
  • Discourage shifting cultivation
  • Provide seeding and technical support to the marginalized
  • Ground and surface water check must be implementing systematic
  • Raising awareness on forestation among children
  • Providing equipment and technical supports
  • Provide marketable seeds/stem