A water-saving tool in drought-hit Chile: human hair
The hair, which is turned into sheets and discs of compostable mulch through mechanical weaving, reduces direct evaporation by 71% and saves up to 48% of irrigation water, according to the Matter of Trust Chile foundation, which makes the hair mats.
"Hair is very interesting. It contains nutrients, nitrogen, calcium, sulfur, and organic matter that is added to the soil, improving it and enhancing plant growth and agricultural production by at least 30%," said Mattia Carenini, CEO of the foundation.
Farmer Maria Salazar said the hair has helped get excellent crop yield from lemon trees in Taltal, about 900 kilometers (560 miles) north of the Chilean capital in the arid Antofagasta region.
"The hair mats are a benefit to the system and water stress we're facing," Salazar said. "By providing shade, they maintain a lot of humidity and prevent the sun's rays from evaporating the little water we have."
The foundation was created in 2020 to promote conservation and regeneration through the creative use of waste. The hair is sourced from deals with 350 salons and 10 pet groomers around Chile, with about 2% of the hair used in the mats coming from pets.
Other products from the foundation include a liquid fertilizer made from recycled hair and a hair-based absorbent for recovering oils, metals and other contaminants from water.
Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles
Yahoo
a day ago
- Yahoo
Jeju Air jet still had a working engine when it crashed, investigation update says
By Lisa Barrington, Heekyong Yang and Dan Catchpole SEOUL (Reuters) -A Jeju Air plane that crashed in December during an emergency landing after a bird strike could have kept flying on the damaged engine that was still working after pilots shut down the other one, according to an update from South Korean investigators. The Boeing 737-800 instead belly-landed at Muan airport without its landing gear down, overshot the runway and erupted into a fireball after slamming into an embankment, killing all but two of the 181 people on board. Investigators have not yet produced a final report into the deadliest air disaster on South Korean soil, but information about the plane's two engines has begun to emerge. According to a July 19 update prepared by investigators and seen by Reuters but not publicly released following complaints from victims' family members, the left engine sustained less damage than the right following a bird strike, but the left engine was shut down 19 seconds after the bird strike. The right engine experienced a "surge" and emitted flames and black smoke, but investigators said it "was confirmed to be generating output sufficient for flight," in the five-page update, which included post-crash photos of both engines. No reason for the crew's actions was given and the probe is expected to last months as investigators reconstruct the plane's technical state and the picture understood by its pilots. Experts say most air accidents are caused by multiple factors and caution against putting too much weight on incomplete evidence. MORE QUESTIONS So far, public attention has focused on the possibility that the crew may have shut down the less-damaged engine, rekindling memories of a 1989 Boeing 737-400 crash in Kegworth, England, where pilots shut down a non-damaged engine by mistake. The disaster led to multiple changes in regulations including improvements in crew communication and emergency procedures. A source told Reuters on Monday that the South Korea-led probe had "clear evidence" that pilots had shut off the less-damaged left engine after the bird strike, citing the cockpit voice recorder, computer data and a switch found in the wreckage. But the latest update on the crash also raises the possibility that even the more heavily damaged engine that was still running could have kept the plane aloft for longer. It did not say what level of performance the operating engine still had, nor what extra options that might have given to the plane's emergency-focused crew before the jet doubled back and landed in the opposite direction of the runway from its initial plan with its landing gear up. Both engines contained bird strike damage and both experienced engine vibrations after the strike. The right engine showed significant internal damage, the Korean-language update from South Korea's Aviation and Railway Accident Investigation Board (ARAIB) said, but it did not describe the damage found in the left engine. The update did not say how the left engine was operating nor the state of systems connected to either engine, said former U.S. National Transportation Safety Board investigator Greg Feith when shown the document translated by Reuters. It contains some new facts but omits far more, resulting in a "cryptic" document, he said. ARAIB, which plans to issue a final report next June, did not immediately respond to a request for comment. Safety experts say it is common for early reports to contain sparse facts and limited analysis while investigations continue. A preliminary report released in January said feathers and blood stains from ducks were found in both engines. The engines - made by CFM International, jointly owned by GE and France's Safran - were examined in May and no defects or fault data were found beyond the bird and crash damage, the report said. Families of those who died in the disaster were briefed on the engine findings but asked investigators not to release the July 19 report, saying that it appeared to apportion blame to the pilots without exploring other factors. The report was withheld but Reuters and South Korean media obtained copies. Boeing and GE referred questions about the crash to ARAIB. Safran did not immediately respond to a request for comment. Jeju Air has previously said it is cooperating with ARAIB and is awaiting publication of the investigation. Under global aviation rules, civil air investigations aim to discover crash causes without assigning blame or liability. The Jeju Air pilots' union said ARAIB was "misleading the public" by suggesting there was no problem with the left engine given that bird remains were found in both. A source who attended the briefing told Reuters that investigators told family members the left engine also experienced a disruptive "surge," citing black box data. The pilot union and representatives of bereaved families have asked that evidence be released to support any findings. Relatives say the investigation also needs to focus on the embankment containing navigation equipment, which safety experts have said likely contributed to the high death toll. Global aviation standards call for any navigation equipment in line with runways to be installed on structures that easily give way in case of impact with an aircraft. South Korea's transport ministry has identified seven domestic airports, including Muan, with structures made of concrete or steel, rather than materials that break apart on impact and has said it will improve them. Designs for the new structures are in progress, a ministry official told Reuters last week. Solve the daily Crossword
Yahoo
3 days ago
- Yahoo
Serious safety violations found at Russian airline a month before fatal crash, Izvestia says
MOSCOW (Reuters) -A spot check on Angara Airlines, which operated the Antonov An-24 plane which crashed in Russia's far east on Thursday killing all 48 on board, had uncovered serious safety violations a month beforehand, the Izvestia news outlet reported on Friday. The plane, which was 49 years old, crashed as it prepared to land, in an incident that highlighted the use of old, Soviet-era aircraft and raised questions about their viability, with Western sanctions limiting access to investment and spare parts. Russia's transport ministry said on Friday that aviation and transport regulators would investigate the privately-owned Angara's activities to check if it is complying with federal aviation rules before taking a decision about its future. Vasily Orlov, the governor of the Amur region where the plane came down, said on Friday that investigators were working on the crash site and that there were two main theories about what had caused it: technical failure and pilot error. The plane's black boxes had been recovered and were being sent to Moscow to be studied, he said. Citing documents it had seen from Russia's airline and transport regulators, Izvestia said that transport safety inspectors had carried out a spot check on Angara in June which had uncovered concerns related to the servicing of its planes. Eight of Angara's planes had been temporarily grounded due to the inspection, it said, and four of its technical staff temporarily banned from carrying out technical inspections. Angara and Rostransnadzor, the transport regulator, did not immediately respond to requests for comment, and Reuters could not independently verify the details of the inspection. Izvestia said that inspectors had drawn attention to the fact that the company's documents had shown that planes had sometimes purportedly been serviced by staff who other documents showed were not working on the relevant days. The standard rules and methods of servicing were also not being followed by staff, some of whom did not have the necessary qualifications for such work, Izvestia said. In one instance, documents showed that a special piece of testing equipment needed to check a plane's control panel had not been physically issued even though other documents showed someone had signed off that the test had been done. "I ask you to present a plan to fix the violations identified, a report about the reasons for them, and measures being taken to ensure they do not occur," a letter from Rostransnadzor, the transport regulator, to Angara sent after the inspection said, according to Izvestia.
Yahoo
4 days ago
- Yahoo
FAA sees no mechanical issue with 787 Boeing fuel control unit after Air India crash
OSHKOSH, Wisconsin (Reuters) -The head of the Federal Aviation Administration said on Thursday the fatal crash last month of an Air India Boeing 787 jet does not appear to have been caused by a mechanical issue or inadvertent movement of the fuel control unit or switches. "We can say with a high level of confidence is it doesn't appear to be a mechanical issue with the Boeing fuel control unit," Bryan Bedford, the FAA's administrator, told reporters on the sidelines of an air show in Wisconsin. He said FAA employees had taken the units out, tested them and had inspectors get on aircraft and review them. "We feel very comfortable that this isn't an issue with inadvertent manipulation of fuel control," he said. The probe into the Air India crash, which killed 241 of the 242 people on board and 19 on the ground, is focused on the fuel control switches of the Boeing 787 jetliner. The switches control fuel flow to aircraft engines, allowing pilots to start or shut them down on the ground, or manually intervene during in-flight engine failures. Air India said on Tuesday it has completed precautionary inspections of the fuel control switch locking mechanism on all 787 and 737 aircraft, with no issues detected. A preliminary report from India's Aircraft Accident Investigation Bureau earlier this month found the switches had almost simultaneously flipped from "run" to "cutoff" shortly after takeoff, causing the engines to lose power. Reuters reported last week, citing a source, that the cockpit recording on the Air India flight from Ahmedabad to London Gatwick suggested the captain cut fuel to the engines. Solve the daily Crossword
