| 000 -LEADER |
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| fixed length control field |
02109nab a22001577a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20230118165116.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
230118b ||||| |||| 00| 0 eng d |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Preferred name for the person |
Soriano, Roberto S. |
| Relator term |
author |
| 245 10 - TITLE STATEMENT |
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| Title |
process water use and water quality in selected small scale gold processing sites in the Philippines |
| 264 #4 - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Date of publication, distribution, etc |
2017 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc |
Small-scale gold production contributes significantly to the total value of gold mined in the country. While the<br/>economic benefits from small scale gold production are promising, certain concerns such as water management and heavy metal<br/>pollution have been raised. This study provides actual documentation at nine observation sites across the Philippines to quantify<br/>the use of process water and the changes in water quality indicators in small-scale gold production. The results show a wide<br/>variability in the amount of water use due to the choice of method employed in the recovery of gold. Process water was measured<br/>to range from 1,424 to 38,512 liters per ton of ore with a mean of 17,723 liters per ton of ore. On the average, the process water<br/>usage associated with sluicing, milling, cyanidation, and panning accounted for 79%, 16%, 4% and 1% of the total process water,<br/>respectively. The laboratory analysis of the process water also showed that heavy metal content for arsenic, cadmium, mercury and<br/>lead above the effluent standards for gold ore mining were detected in some stages during the gold extraction process. The results<br/>can be used to identify potential stages in improving the efficiency of water use in the gold extraction stage for small scale facilities<br/>and in adopting water saving alternatives. Furthermore, the results can be useful for identifying the potential impacts and proper<br/>management of the effluents from the processes. Recommendations to improve management of water resource and water quality<br/>are discussed and presented. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Mine water--Quality |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Soriano, Virginia J. |
| Relator term |
author |
| 773 ## - HOST ITEM ENTRY |
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| Title |
Philippine Engineering Journal |
| Relationship information |
vol. 38, no. 2: (December 2017), pages 79-98 |
| 942 ## - ADDED ENTRY ELEMENTS |
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| Source of classification or shelving scheme |
|
| Item type |
JOURNAL ARTICLE |