Learning and Discussion of Innovative ideas about Mining Waste Management and also Mining Related News and Activities

  • Mine Waste Management Training

    Mine Waste Management Short training sponsored by Government of Japan through JICA in corporation with the Government of PNG through CEPA, MRA and DMPGM.

  • Mount Sinivit Mine

    Acid mine drainage (AMD) continues to flow from the abondoned workings (mine). It is of two types and they are Mine Drainage from underground and open-pit and the seepage water from waste dump and tailings dam.

  • Mining Warden Hearing at Ok Isai Village, Frieda River, East Sepik Province, PNG

    Landowner grievances is always a challenge for the PNG Mining Industry. However, the Regulators of the Mining Inductry facilitate Mining Warden Hearings and Development Forums to address grievances related to mining.

  • Osarizawa Underground Mine Adit

    Osarizawa Underground Mine is an abandoned mine in Akita Prefecture, Japan. Event though the mine is closed, the mine site is kept for sightseeing purposes.

  • Hidden Valley Tailings Storage Facility (TSF)

    Mine Waste refers to the waste related to mining activities such as tailings and waste rock. Management refer to how the mine derived waste is managed by the operator and or the Regulatory Body.

Tuesday, 16 January 2018

Data Collection of Rapid PACKTEST Results

Data collection is the recording and assembling of results obtained from the Rapid PACKTEST experiments at various locations.

Before you conduct the packtests, you need to have the required materials for preparation, experiment and recording of data. The materials and equipment you would require for testing include but not limited to:
Packtest Kits.
Note Book
3 x Half cut container
0.45µm filter
Camera/smart phone with camera.
turbidity meter
pH meter

Once you have the above equipment list, you are about to conduct the PACKTEST and other necessary measurements. But before that you must never forget to give a sample location name or sample code/ID and record the coordinates, location zone and offcourse altitude of the sample location. This will ease the management of various data of the same type.

Thereafter, you proceed with the PACKTEST procedures as outline below which is a global practice:

Sampling Procedure for PACKTEST

1. Fetch water in container and filter the water using syringe and 0.45µm filter to filter water sample and pour filtered water sample into a clear mini cylinder(half cut container).
2. Remove the colored line at the top of the tube to clear the aperture.
3.    Press tube's sidewall to expel air, and hold the tube.
4. Immerse the aperture of the tube into the water sample in the mini cylinder and release to fill the tube halfway.
5. Shake the tube slowly for few seconds.
6. Wait for the reaction time as indicated in the instruction manual, and then compare the actual color in the tube with provided Standard Color. The nearest color indicates the concentration value (mg/L = ppm) of the analyte in your sample.

Concurrently set up the equipment for measuring the pH, temperature, metal conductivity and turbidity of the water sample at the same sample location for the packtest water sample taken.  After the setup is complete, you take the reading carefully as the reading varies every second. It is recommended to take the best average reading.

Upon the completion of the setup and PACKTESTs, you have the data available at hand to record. In your note book you record the readings of pH, Turbidity, Temperature, metal conductivity. Then you have the other sets of data from the PACKTEST results. Each element tested has got a numbered colour range that corresponds to the concentration of that element/compound in the water sample. You record every data for the elements that are tested.

Finally you need to digitise the data and analyse the test results. To do that, you need to have a computer or a laptop. Create an excel spread sheet in your laptop or computer and enter the field data in a tabulated format. Your sample results look like the table below:
Table 1: Rapid PACKTEST Results
How to do data analysis from the PACKTEST results and other measurements is in a different article (Data Analysis of Rapid PACKTEST Results)

Related Articles:
Data Collection of Rapid PACKTEST Results
Data Analysis of Rapid PACKTEST Results
How to Conduct Rapid PACKTEST in a Well


Thursday, 28 December 2017

Ramu Nickel Mine Prepares for Royalty Payment

The Ramu Nickel and Cobalt Mine in Kurumbukari, in Madang Province is preparing to pay long waited royalty to the landholders. This was reported in the National News Paper dated 28th December 2017.

Landholder Royalty for Ramu Nickel Project has not been paid since shipment till to date. This delay could be due yo the tax holiday given to the developer by the government or as a condition in the Mining Developments Contract(MDC).

This matter was brought to light but it was further delayed since then to settle administrative processes. It is now looking promising as the developer takes initiative to organize the landholders in preparation for royalty and other benefits that are ongoing.

The Mining Act 1992 is somewhat drafted in way as to cater for landholders grievances and expectations. Like in the case of landowner royalty, it will he paid directly into their accounts rather than landowners front the company's office or government's office to get their rightfully due payments.

Credits to MCC for this step towards royalty payment.

Sunday, 24 December 2017


Rapid PACKTEST is commonly known as PACKTEST. This test is a simple onsite method of testing water quality which produces amazing results in a split of a second. It does not require complicated analytical techniques to determine the quality of water. Concentration of heavy metals, precious metals and any other elements and compounds in the water are detected using this method. pH of water can also be determined using this method. Water in this case can be a flowing creek,settling ponds, pool beside vats or heap leach pads, mine pits etc.

     PACKTEST Results for Pihema Creek, 
      Morobe Province.  Cyanide Detected
The results indicate the concentration of elements intended to test in the water which also influences the pH of water. The readings will give an estimated range of figures and do not have to be exact. Readings are taken with confidence in accuracy of about 90%. To obtain exact results, further laboratory testing is recommended.

It is recommended that Pact Test should be practiced by all government regulators in the extractive industries especially in the Mining and petroleum industry. This will greatly help during statutory inspections which can give results instantly onsite rather than waiting for results in the laboratory after few weeks or months. This will also be a alert for the industry to treat waste water effectively or improve on their waste water treatments and monitoring techniques.
The process and the setup of the testing method are outlined below.

Sampling Procedure for PACKTEST
1.            Fetch water in container and filter the water using syringe and 0.45µm filter to filter water sample and pour filtered water sample into a clear mini cylinder.
2.             Remove the colored line at the top of the tube to clear the aperture.
3.            Press tube's sidewall to expel air, and hold the tube.
4.            Immerse the aperture of the tube into the water sample in the mini cylinder and release to fill the tube halfway.
5.            Shake the tube slowly for few seconds.
6.            Wait for the reaction time as indicated in the instruction manual, and then compare the actual color in the tube with provided Standard Color. The nearest color indicates the concentration value (mg/L = ppm) of the analyte in your sample.
 The above Figure is a simplified diagram by
 as a guide.

Note: Cyanide is tested differently. Before the above procedure is applied, first of all dissolve the mixing reagent into the filtered water in a small enclosed translucent cube of about 2cm x 2cm x 1.5cm in size. Finally immerse the cyanide reagent into the solution and release to fill up the tube. Shake the tube and record the reading after 8 minutes.

The reaction times for each element or compound varies from seconds to minutes. Reaction time for cyanide takes longer than any other elements or compounds. It could be other elements or compounds as well but during the tests conducted by the reporter indicated that cyanide took longer than other elements.

It is recommended that PACKTEST should be conducted on site. It would be a bad practice if sample is taken from a different spot and date and tested on different date and location as the results would not represent the sample location and time. If you do then be aware to note the results and anticipate error in the readings recorded.

Other Equipment for testing water quality includes but not limited to pH meter, Turbidity Meter. pH meter is for measuring the pH level of water  and also measure the temperature of water. Turbidity meter measures turbidity of water and also temperature and metal conductivity in the water. 

Turbidity is the measure of suspended particles of sediments flowing under or through the water. It could be steal water or running water.

Related Articles:
Data Collection of Rapid PACKTEST Results
Data Analysis of Rapid PACKTEST Results
How to Conduct Rapid PACKTEST in a Well

Note: This post is subject to change based on continuous review and amendment.

Tuesday, 12 December 2017

Mining Warden Hearing in Papua New Guinea

Mining Warden Hearing is an open forum to gauge public views of the people who would be affected by an exploration work program or any activity related to mining. It is one of the requirements in the Mining Act 1992 for any kind of mining related licence/lease grant.

Warden Hearing is conducted in accordance with Section 108 of the Mining Act 1992. During the Mining Warden Hearing, the warden on the ground explains the purpose of the meeting and allow the applicant or an agent  of the applicant to explain the work program in brief to the stakeholders present. The applicant/agent explains the work program or the proposal for development to the warden and the people at the hearing venue on the date and time fixed for the hearing.

The warden then allow the people who are within the tenement boundary or  just around the tenement boundary who would be affected by the applicant's proposal for development to give their views and further advise them to make clear their stand with reasons whether they support the application or otherwise. The warden then records and assess the views of the affected landholders.

The warden also allow people whom he considers that, the work program for the applicant will also affect them to give their views as well and he will record and assess them.

Finally the warden allows the local government representative of the host province if any present at the hearing venue on the date and time fixed for hearing to give the views on behalf of the host government wether it could be Local Level Government or Provincial Government.

Without further delay the warden thank all the people for fulfilling the requirements under the Mining Act 1992 under Section 108.

The warden may adjourn the hearing from time to time and from place to place where feasible and economical.

The Warden prior to opening the hearing, he explains that anything related to land disputes and environment matters are not discussed in this forum.  Such disputes or issues are to be brought forward to relevant government bodies to address them accordingly. i.e. Land dispute matters to be brought to the attention of Lands and Physical Planning Department and Environment matters to Conservation and Environment Protection Authority (CEPA).

Mining Warden Hearing at Ok Isai, for the Frieda River SML 9 Application in the West Sepik Province 


Sunday, 10 December 2017

Zeolite Mine in Japan

Zeolite is defined in the OXFORD UNIVERSITY PRESS Dictionary as any of a large group of minerals consisting of hydrated aluminosilicates, used as cation exchangers and molecular sieves.

Zeolite is varies from colours dictated by the host rocks and soil and also reaction with the atmosphere. The colour of Pure Zeolite is blue-green (Teal) or sky-blue.  A fresh-cut zeolite ore looks a bit green but when it gets expose to air and dry, it will look like a sky-blue.

Zeolite is one of the most demanding mineral products in the agro-industry as well as mining industry especially in mine waste management section of environment department. The Agro-industry requires the end product of zeolite mineral in treating water and soil.

The Zeolite Mine in Akita Prefecture in Japan is one of the small scale mines which utilises one excavator and one haul truck at the mine site apart from processing facilities. Mining and Processing of zeolite to its finished product is so simple and does not require intensive labour. There are about two-three workers at the mine site. The operational costs and capital costs are too low and the operation is feasible at a minimum cost.  One excavator does dual tasks by changing the mounted bucket and rock drill bit. To break the ore, drill bit is inserted. After drilling is done, bucket is inserted to collect the fractured zeolite ore and further stockpile on site for haulage.

One haul truck is used for transporting the ore to the processing facilities. From the processing facilities, ore is crushed, screened and packed depending on customers’ demand and requisition. This process is repeated which constitute the mine cycle. If demand increases, production is increased which obviously require additional equipment and labour to cater for the demand.

Zeolite is extremely amazing in the water treatment. If zeolite powder is poured or mix with dirty water, you will definitely get clear water as zeolite causes the suspended particles in water to settle to the bottom of the water within few seconds.  Polluted soils can be treated to regain its normal soil fertility.  Zeolite powders are also fed to livestock.  If zeolite ore is placed in water, it will melt like ice-ream until the junk is disappeared.

Zeolite can be used as either passive or active treatment in the mine waste water treatment.

(Picture of Zeolite Mine in Akita Prefecture near Kosaka, Japan)


Tuesday, 5 December 2017

Bulolo Opposing New Exploration

The Bulolo people (both local & Business Communities) have overwhelmingly objected the Exploration Licence Application lodged by Wabu Alluvials Limited which is also a local company.

 As a process of licence grant, the applicant must meet the requirements specified in the Mining Act 1992 of the Independent State of Papua New Guinea.

Wabu Alluvials Limited lodged an Exploration License Application with the Mineral Resources Authority (MRA) to obtain an Exploration Licence to explore for minerals. While the licence is under the process of granting or refusal by the Minister for Mining, the local communities and the business communities lodged written objections with the Mineral Resources Authority through the office of The Chief Mining Warden. The landholders objected the ELA stating that the company will disturb their environment and also interrupt their routine business activities. They even published on the National News Paper through the Bulolo District Administrator Tae Gwambelek.

It is a requirement under the Mining Act 1992 that the applicant must facilitate a Mining Warden Hearing which is conducted by the appointed Mining Warden to gauge the views of the affected landholders, pursuant to Section 108 of The Mining Act 1992.  Once the views of the affected landholders are gauged, a report of this hearing is provided to the Mining Advisory Council (MAC) for further deliberation to the Minister for Mining. Finally, the Mining Minister has the final authority whether to grant the licence or otherwise based on MAC’s Advice.

All the related licences/leases specified under the Mining Act 1992 follow the same process. This is transparent and views of the affected stakeholders are fairly gauged.

WardenHearing for this application was adjourned to a later date which will be fixed by the Registrar of Mineral Tenements and the Chief Mining Warden.

The next post will be the procedures of Mining Warden Hearing Process. Stay in tune

Saturday, 15 July 2017

Mine Waste Disposal in Papua New Guinea

Mine waste disposal is any waste related to mining is disposed into any environment. Environment could be land, river or deep sea or tailings dam. Waste can be either solid or slurry.

Most of the mining companies in PNG provide shallow reasons to government to allow them to dispose mine waste into river or deep sea tailing placements.
Some of these factors include but not limited to:
- Topography
- Climatic conditions.
-Geological structures with respect to seismic activities.
- Soil/rock competency etc..

The above are the factors that pose threat to the tailings dam construction, thus developers propose to dump tailings into riverine and deep sea tailings placement.

Hidden Valley mine and K92 mine have built TSF  and it is anticipated that other new mining projects could build TSF.

PNG should completely discourage riverine tailings and DSTP in PNG and encourage TSF to save PNG from mining waste management issues.
Waste Rock Dump at Ok Tedi Mine


Tuesday, 27 June 2017

Relationship of pH and Conductivity of Heavy Metal Contents under Rainy Condition

pH increases as the conductivity is low in water. Heavy rain can increase the conductivity of heavy metals contents in water which reduce the pH of water.

During heavy rain you would expect a higher reading for conductivity and turbidity on the turbidity measuring equipment. at the same location and during dry days you would expect a different reading with low pH values.

Saturday, 17 June 2017

Mine Waste Management Training in Japan, 2017

Mine Waste Management Short training sponsored by Government of Japan through JICA in co-orporation with the Government of PNG through CEPA, MRA and DMPGM.

The training lasted two weeks and 6 officers from MRA and CEPA attended the training. The training comprise of theory and practicals and site inspections throughout Japan.

The training was a good exposure and skills acquired will be applied in drafting policies to encourage mining with environment friendly manner.This project will continue till 2018.

Tuesday, 13 June 2017

Possible Mine Pollution in a Metal Mine

In an event when rain fall, water seepage cause subsidence of overburden materials. Rain water reacts with acid forming rocks and generate acid mine drainage (AMD). The ionized water flows with lose particles of materials known to be sediment runoff which eventually becomes the tributary of a nearby stream. Consequently the pH is reduced at the nearby stream.

Sometimes structures of facilities fail and waste water is released into the environment without proper treatment and this is a concern for environment pollution along the riverine inhabitants. 

In sulfide mines the possible pollution are:
  • Acid drainage from mine adit
  • Surface exposure to atmosphere and moisture
  • Tailing dam gradually eroded by river water
  • Bursting of waste rock/tailing dam
  • collapse of abandoned dressing plant.


Welcome Mine Mine Waste Management

"Welcome to the minewastes.com. In this site you will discover new and interesting tips about matters related to mine wastes management. You will never regret spending time and contributing in this site as it saves lives of many people in impacted areas. Discover more and contribute Meaningfully to save life."

Featured post

Osarizawa Mine in Akita Prefecture, Japan

Osarizawa Underground Mine Adit Osarizawa mine is an abandoned mine in Akita Prefecture, Japan . Event though the mine is closed, the ...

Related Sites

Contact Us


Email *

Message *

Follow by Email