More articles in this category
Top Stories

 Experts are concerned that if the current scourge of road accidents continue non-stop, the country risks running its pockets dry as millions...

Outspoken land activist, Job Amupanda has written a letter to the Oranjemund Town Council objecting to the granting of an erf to the trade ministe...

Windhoek mayor, Muesee Kazapua, said that the city will not be allocating land to applicants who plan on building churches. The city said it wi...

A police officer accused of leading what has been called a brutal assault on civilians in Okakarara has been transferred to another station, the O...

As Africa plunges into mourning following the death of the seventh Secretary-General of the United Nations (UN), Kofi Annan this past weekend...

Namibia's national rugby team will be heading to the Rugby World CUP 2019 in Japan, after qualifying against Kenya in a 53-28 game in the Afri...

Other Articles from The Villager

Recovery plans set for normalised production levels at Tschudi

by Rodney Pienaar

Weatherly International has outlined a recovery plan for its Tschudi Copper mine following a significant water ingress on 11 May 2018.

The recovery strategy and expenditure plan, which will require a capital investment of N$14,300,000, has been approved and work is underway to increase pumping capacity to lower and stabilise the water levels in all pits and allow mining operations to regain access to ore, chief executive officer of Weatherly mining, John Sisay said.

“The plan is expected to restore normalised production levels at Tschudi by December 2018, as Orion Mine Finance remains supportive of management endeavours to stabilise the operation. We are confident that with the necessary financial assistance we will be able to implement the recovery plan and restore normalised production levels at Tschudi by December 2018,” he said.

He added that the recovery strategy is based on a 12-week delivery and includes water abstraction related to all equipment and infrastructure required to reduce water levels in the pits and to pump it into the canal that runs along the footwall of the pit.

According to Sisay, the recovery phase is now well underway with end-June target water levels achieved and abstraction capacity has been increased from 1,400m3/hr to 3,000m3/hr through the rental of additional diesel-driven pumps and installation of 1,800m of high-pressure HDPE pipelines.

“A canal and settling dam are now fully commissioned to handle the water discharge, with the canal capable of handling more than 6,000m3/hr. Distribution from the settling dam is maximised with current installed infrastructure at 2,000m3/hr to direct water to various discharge points via a storm water pond, with the balance of the water overflowing the settling dam back into the aquifer,” he said.

He added that additional infrastructure is planned to increase distribution by 2,000m3/hr from the settling dam by the end of July and significant progress has been made to design, cost and implement a significant upgrade of the dewatering infrastructure.

Sisay further said that the system will be upgraded to increase abstraction and discharge rate to a nominal 3,000m3/hr via a predominantly electric grid-power system.

“The system will be developed in three phases at an estimated capital cost of N$44-million.This will include an additional grid-power substation to increase power supply to Tschudi by 4MVA to 12MVA. Management remains confident in the future financial viability of Tschudi Mine,” he said.