Mthuli Ncube taps Dutch grant to clean toxic Lake Chivero water

Half the money is free, the lake is toxic, and Zimbabwe just pulled a high-tech, low-risk play to stop Harare’s water source from turning into a health hazard.

The funding twist that changes everything

• The Lake Chivero cleanup is backed by €19.8 million in total.
• Fifty percent comes as a grant from the Dutch government, cutting Zimbabwe’s financial risk hard.
• Less debt exposure, more room to use advanced tech.

Where the announcement came from

• The Ministry of Finance, Economic Development, and Investment Promotion confirmed the plan in Harare.
• Finance Minister Mthuli Ncube met LG Sonic CEO Yousef Yousef at the World Economic Forum in Davos, Switzerland.
• The focus was one thing: fixing Lake Chivero for good.

Why Lake Chivero is in trouble

• Lake Chivero supplies Harare and nearby areas.
• Decades of untreated sewage, farm runoff, and industrial waste wrecked the ecosystem.
• Toxic algal blooms took over, driven by cyanobacteria.
• Fish kills pushed the situation from bad to urgent.

The technology being lined up

• LG Sonic uses ultrasound to mess with algae growth cycles.
• No chemicals involved, which matters a lot for aquatic life.
• Real-time monitoring tracks oxygen, nutrients, and algae levels.
• The system helps biodiversity recover instead of nuking everything.

Why this tech is trusted

• The same approach is already running in more than 60 countries.
• It aims to clear water, cut toxins, and stabilize ecosystems.
• Fish, plants, and other organisms stay intact.

What the government wants long-term

• A five-year restoration program is on the table.
• The plan leans on chemical-free methods and constant monitoring.
• The end goal is a safe, productive, climate-resilient lake.
• Better governance and stronger institutions are baked into the vision.

How does this help Harare’s water bills

• Harare spends about US$3 million every month on water treatment chemicals.
• Most of those chemicals are imported.
• Only aluminium sulphate and chlorine gas are sourced locally.
• Poor raw water quality keeps pushing costs higher and supply shakier.

Who caused most of the pollution

• Untreated sewage from Harare City Council is the main driver.
• Industrial and urban waste adds to the mess.
• The Environmental Management Authority has repeatedly named the City of Harare as the biggest polluter.

The moment things got deadly

• In 2024, four rhinos and other animals died after drinking lake water.
• That incident highlighted just how concentrated the toxins had become.
• The ecosystem was already in deep collapse by then.

Government’s parallel water plan

• In 2023, a technical committee was set up to stabilize Harare’s water system.
• Targets include holding production near 520 megalitres per day.
• Non-revenue water is meant to drop from 59 percent to 55 percent.
• Potable water access is supposed to rise from 40 percent to 60 percent.

Why non-revenue water hurts

• This is treated water lost to leaks, theft, or bad meters.
• It never reaches users despite being paid for in production costs.

Public health fallout

• Harare Province has suffered two major cholera outbreaks.
• One hit in 2019, another in 2023.
• The earlier outbreak killed more than 50 people.
• Poor sanitation and unreliable clean water sat at the center of both crises.

Why timing matters

• The Lake Chivero project lands as the government pushes Public-Private Partnerships.
• Clean, reliable water is being framed as strategic infrastructure.
• With half the funding free, the pressure is on to make this one work.