Tunisian startup turns olive waste into clean energy

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A man arranges rolls of olive pomace at the grounds of start-up Bioheat, on Mar. 3, 2025 in the town of SanHajja near Tunis. (AFP)
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Updated 29 March 2025
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Tunisian startup turns olive waste into clean energy

  • For generations, rural households in Tunisia have burned olive waste for cooking and heating, or used it as animal feed
  • The International Olive Council estimated Tunisia will be the world’s third-largest olive oil producer in 2024-2025, with an expected yield of 340,000 tons

SANHAJA, Tunisia: In a northern Tunisian olive grove, Yassine Khelifi’s small workshop hums as a large machine turns olive waste into a valuable energy source in a country heavily reliant on imported fuel.
Holding a handful of compacted olive residue — a thick paste left over from oil extraction — Khelifi said: “This is what we need today. How can we turn something worthless into wealth?“
For generations, rural households in Tunisia have burned olive waste for cooking and heating, or used it as animal feed.
The International Olive Council estimated Tunisia will be the world’s third-largest olive oil producer in 2024-2025, with an expected yield of 340,000 tons.
The waste generated by the oil extraction is staggering.
Khelifi, an engineer who grew up in a family of farmers, founded Bioheat in 2022 to tackle the issue. He recalled watching workers in olive mills use the olive residue as fuel.
“I always wondered how this material could burn for so long without going out,” he said. “That’s when I asked myself: ‘Why not turn it into energy?’“
Beyond profit, Khelifi hopes his startup helps “reducing the use of firewood as the country faces deforestation and climate change.”
At his workshop, employees transport truckloads of olive waste, stacking it high before feeding it into the processing machines.
The material is then compacted into cylindrical briquettes and left to dry for a month under the sun and in greenhouses before its packaging and sale.
Khelifi began developing his idea in 2018 after he traveled across Europe searching for a machine to turn the olive paste into long-burning fuel.
Unable to find the right technology, he returned to Tunisia and spent four years experimenting with various motors and mechanical parts.
By 2021, he had developed a machine that produced briquettes with just eight-percent moisture.
He said this amount significantly reduces carbon emissions compared to firewood, which requires months of drying and often retains more than double the amount of moisture.
Bioheat found a market among Tunisian restaurants, guesthouses, and schools in underdeveloped regions, where winter temperatures at times drop below freezing.
But the majority of its production — about 60 percent — is set for exports to France and Canada, Khelifi said.
The company now employs 10 people and is targeting production of 600 tons of briquettes in 2025, he added.
Selim Sahli, 40, who runs a guesthouse, said he replaced traditional firewood with Khelifi’s briquettes for heating and cooking.
“It’s an eco-friendly and cost-effective alternative,” he said. “It’s clean, easy to use, and has reduced my heating costs by a third.”
Mohamed Harrar, the owner of a pizza shop on the outskirts of Tunis, praised the briquettes for reducing smoke emissions, which he said previously irritated his neighbors.
“Besides, this waste carries the soul of Tunisian olives and gives the pizza a special flavour,” he added.
Given Tunisia’s significant olive oil production, waste byproducts pose both a challenge and an opportunity.
Noureddine Nasr, an agricultural and rural development expert, said around 600,000 tons of olive waste is produced annually.
“Harnessing this waste can protect the environment, create jobs, and generate wealth,” he said.
Nasr believes repurposing olive waste could also help alleviate Tunisia’s heavy dependence on imported fuel.
The country imports more than 60 percent of its energy needs, a reliance that widens its trade deficit and strains government subsidies, according to a 2023 World Bank report.
Fuel and gas shortages are common during winter, particularly in Tunisia’s northwestern provinces, where households struggle to keep warm.
Redirecting agricultural waste into alternative energy sources could ease this burden.
Yet for entrepreneurs like Khelifi, launching a startup in Tunisia is fraught with challenges.
“The biggest hurdle was funding,” he said, lamenting high-interest bank loans. “It felt like walking on a road full of potholes.”
But now his goal is “to leave my mark as a key player in Tunisia’s transition to clean energy,” he added. “And hopefully, the world’s, too.”


Health ministry in Gaza says 1,042 killed since Israel resumed strikes

Updated 43 sec ago
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Health ministry in Gaza says 1,042 killed since Israel resumed strikes

GAZA CITY: The health ministry in Gaza said on Tuesday that 1,042 people have been killed in the Palestinian territory since Israel resumed large-scale strikes on March 18.
According to the ministry’s statement, the figure includes 41 people killed in the past 24 hours. It also reported that the overall death toll had reached 50,399 since the war began on October 7, 2023.
After a ceasefire that lasted roughly two months, Israel relaunched its military campaign in Gaza on March 18. Since then, bombardment and new ground assaults that have killed more than 1,000 Palestinians, according to Gaza’s Health Ministry. The ministry’s count does not distinguish between militants and civilians, but it says over half those killed are women and children.

Israeli defense firm Elbit gets $130 million European rocket supply deal

Updated 01 April 2025
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Israeli defense firm Elbit gets $130 million European rocket supply deal

  • Pro-Palestine activists have repeatedly targeted Israeli arms manufacturer Elbit Systems in the UK
  • They accuse the company of supplying weapons used in Israel’s military actions in Gaza and the West Bank

JERUSALEM: Elbit Systems, Israel’s largest defense firm, said on Tuesday it received a $130 million contract to supply advanced rocket munitions to an unnamed European country.
The contract for the Precize and Universal Launching System (PULS), an advanced and versatile artillery rocket system capable of launching a wide range of ammunition types from a single platform, will be performed over three years.
The system, Elbit said, offers precision strike capabilities with a range of up to 300 kilometers.
“As European nations continue to enhance their defense capabilities, the selection of PULS reaffirms its strategic value in modern battlefield scenarios,” said Yehuda Vered, general manager of Elbit Systems Land.
Under the deal, Elbit will supply a variety of advanced rocket systems that are designed to significantly enhance the operational capabilities of the customer’s defense forces.

Pro-Palestine activists have repeatedly targeted Israeli arms manufacturer Elbit Systems in the UK, accusing it of supplying weapons used in Israel’s military actions in Gaza and the West Bank.

The activist group Palestine Action has led these protests, often involving vandalism and direct action against Elbit’s sites. They argue that Elbit profits from war crimes and demand its closure.


Netanyahu reverses decision on new Israel security chief

Updated 01 April 2025
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Netanyahu reverses decision on new Israel security chief

  • Decision to appoint former navy commander Vice Admiral Eli Sharvit as Shin Bet chief reconsidered following criticism, including from a key US senator

JERUSALEM: Israeli Prime Minister Benjamin Netanyahu’s office said Tuesday he had reversed a decision to appoint former navy commander Vice Admiral Eli Sharvit as security agency chief following criticism, including from a key US senator.
“The prime minister thanked Vice Admiral Sharvit for his willingness to be called to duty but informed him that, after further consideration, he intends to examine other candidates,” Netanyahu’s office said in a statement.
Netanyahu had announced Sharvit’s appointment on Monday, pushing back against a supreme court decision to freeze his government’s move to dismiss incumbent director Ronen Bar.
The prime minister had announced Bar’s dismissal on March 21, citing an “ongoing lack of trust.” The supreme court swiftly suspended the decision until April 8.
Bar’s dismissal has sparked daily mass protests in Jerusalem, disrupting the city.
On Monday, hours after Sharvit’s appointment was announced, reports began surfacing that he had been among tens of thousands of Israelis who took to the streets in 2023 to oppose the Netanyahu government’s attempts to reform the judiciary.
Israeli media reports also recalled that Sharvit, who served in the military for 36 years, had supported a 2022 water agreement with Lebanon that Netanyahu had opposed.
It was also revealed that the former naval chief had penned an opinion piece criticizing US President Donald Trump’s policies on climate change, prompting staunch Trump ally, Senator Lindsey Graham, to criticize his appointment in a post on X.
“While it is undeniably true that America has no better friend than Israel, the appointment of Eli Sharvit to be the new leader of the Shin Bet is beyond problematic,” Graham wrote on Monday.
“There has never been a better supporter for the State of Israel than President Trump. The statements made by Eli Sharvit about President Trump and his polices will create unnecessary stress at a critical time. My advice to my Israeli friends is change course and do better vetting.”


Yemen’s Houthis claim they shot down another American drone as US strikes pound country

Updated 01 April 2025
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Yemen’s Houthis claim they shot down another American drone as US strikes pound country

  • The reported shootdown over Yemen’s contested Marib governorate came as airstrikes hit around Sanaa and Saada
  • The US military acknowledged to The Associated Press being aware of reports of the downing of a Reaper

DUBAI: Yemen’s Houthi militia claimed Tuesday that they shot down another American MQ-9 Reaper drone, even as the US kept up its campaign of intense airstrikes targeting the group.
The reported shootdown over Yemen’s contested Marib governorate came as airstrikes hit around Sanaa, the country’s militia-held capital, and Saada, a stronghold for the Houthis.
US President Donald Trump issued a new warning to both the Houthis and their main benefactor, Iran, describing the group as having “been decimated” by the campaign of strikes that began March 15.
“Many of their Fighters and Leaders are no longer with us,” Trump wrote on his social media website Truth Social. “We hit them every day and night — Harder and harder. Their capabilities that threaten Shipping and the Region are rapidly being destroyed. Our attacks will continue until they are no longer a threat to Freedom of Navigation.”
He added: “The choice for the Houthis is clear: Stop shooting at US ships, and we will stop shooting at you. Otherwise, we have only just begun, and the real pain is yet to come, for both the Houthis and their sponsors in Iran.”
Houthis claim they downed another US drone
The militia claimed to have felled a drone in Marib governorate, home to oil and gas fields still under the control of allies to Yemen’s exiled central government. Footage released on social media showed flames in the night, with a Yemeni man claiming a drone had been shot down.
Brig. Gen. Yahya Saree, a Houthi military spokesman, separately claimed downing the MQ-9 drone in a prerecorded video message.
Saree described the militia targeting the drone with “a suitable locally manufactured missile.” The Houthis have surface-to-air missiles — such as the Iranian missile known as the 358 — capable of downing aircraft.
Iran denies arming the militia, though Tehran-manufactured weaponry has been found on the battlefield and in sea shipments heading to Yemen for the Shiite Houthi militia despite a United Nations arms embargo.
The US military acknowledged to The Associated Press being aware of reports of the downing of a Reaper, but declined to comment further.
General Atomics Reapers, which cost around $30 million apiece, can fly at altitudes over 40,000 feet (12,100 meters) and remain in the air for over 30 hours. The aircraft have been flown by both the US military and the CIA for years over Afghanistan, Iraq and now Yemen.
The Houthis claim they’ve shot down 20 MQ-9s over the country over the years, with 16 downed during the militia’ campaign over the Israel-Hamas war. The US military hasn’t acknowledged the total number of the drones it has lost there.
Intense US bombings began March 15
An Associated Press review has found the new American operation against the Houthis under Trump appears more extensive than those under former President Joe Biden, as the US moves from solely targeting launch sites to firing at ranking personnel as well as dropping bombs in cities.
The new campaign of airstrikes, which the Houthis now say have killed at least 61 people, started after the militia threatened to begin targeting “Israeli” ships again over Israel blocking aid entering the Gaza Strip. The militia have loosely defined what constitutes an Israeli ship, meaning many vessels could be targeted.
The Houthis targeted over 100 merchant vessels with missiles and drones, sinking two vessels and killing four sailors from November 2023 until January of this year. They also launched attacks targeting American warships, though none has been hit so far.
The attacks greatly raised the Houthis’ profile as they faced economic problems and launched a crackdown targeting dissent and aid workers at home amid Yemen’s decade-long stalemated war, which has torn apart the Arab world’s poorest nation.


Egyptian inmates’ ordeal in Sudan prisons

Updated 01 April 2025
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Egyptian inmates’ ordeal in Sudan prisons

CAIRO: Prisoners held by the Rapid Support Forces in Sudan spoke on Monday of their ordeal in paramilitary detention centers.

Arrested two months after the country’s civil war began in April 2023, Egyptian traders suspected of spying for the regular army were stripped, tortured and starved, and watched as other inmates died from cholera and malaria.

“You couldn’t go two weeks without falling sick,” said Emad Mouawad, 44, who was held at the notorious Soba prison in southern Khartoum after paramilitary forces raided his home in the city.

At night, swarms of insects crawled over the prisoners. “There was nothing that made you feel human,” he said.

Ahmed Aziz, who was detained with Mouawad, said: “They would bring us hot water mixed with wheat flour. Just sticky, tasteless paste.” Water was either polluted from a well or muddy from the Nile. “If you were sick, you just waited for death,” Aziz said.

Another trader, Mohamed Shaaban, 43, said: “They stripped us naked as the day we were born.  Then they beat us, insulted and degraded us.”
Back home in Egypt, the former prisoners are struggling to recover physically and mentally. “We have to try to turn the page and move on,” Shaaban said. “We have to try and forget.”