HEFEI - Chinese researchers have developed a new material that can absorb heavy metal ions from fertilizer, decreasing environmental pollution. The material, a nanocomposite, was developed by a team led by Wu Zhengyan of the Hefei Institute of Physical Science under the Chinese Academy of Sciences. It can "grab" arsenic and copper ions from manure with high efficiency. The results were published in the Journal of Agriculture and Food Chemistry. Heavy metals in animal fodder leave the manure of domestic animals with high levels of heavy metal ions such as arsenic and copper. As a result, organic fertilizer made from the manure also contains heavy metals, which can cause damage to the environment as well as human body. Using clay and charcoal, Wu's team managed to develop a material that can absorb the heavy metal and keep the ions away from crop roots. The material is environmentally friendly, easy to make and cost-efficient, providing a good solution to bottlenecks in the livestock and fertilizer industries, Wu said. customize silicone braceletscustom wristbandsprintable wristbandsadjustable wristbandsblack rubber wristbands24 wristbandspersonalized silicone braceletsrubber bracelets cheap
XINING - China's largest inland salt lake contained around 80,000 tonnes of naked carp in 2017, 30 times the number in 2002, according to local authorities Wednesday."Qinghai Lake has seen a 14-percent annual growth of naked carp stock this year," said Wang Hai, head of the fishing bureau of northwest China's Qinghai Province.Owing to over-fishing and environmental deterioration, the population of naked carp sharply declined in the 1960s and 1970s.In order to protect the species and restore the Qinghai Lake environment, the province banned naked carp fishing at the lake in 2001, following a series of temporary prohibitions from the 1980s onward.More than 94 million artificially-bred fry have been released into the lake since 2002 to preserve the rare species. There has also been a crackdown on the illegal fishing, selling and processing of the fish.The naked carp is endemic to Qinghai Lake, which is classified as endangered and on the China Species Red List.The fish are critical not only to the existence of local bird species, but to the whole ecological balance of the highland lake.
