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变废为宝的“闭路循环”菲律宾的马雅农场主要种植水稻和蔬菜,还有一片森林.水稻、蔬菜、森林恰好组成了转化太阳能的“生产者”,这个农场还养着两万头猪和数百头牛,动物又组成了生态系统中的主要“消费者”,利用稻草、树叶和蔬菜加工成动物饲料,而动物的粪便和肉类加工厂排出的高浓度有机废水,又送到嫌气发酵的沼气池内,通过“分解者”微生物的作用而产生沼气,为马雅农场的生产和生活提供所需的能源.发酵池内的废物经过沉淀,再将固体与液体分离,液体废物送到氧
The “closed loop” turning waste into treasure The Mayan farm in the Philippines grows mainly rice and vegetables, as well as a forest. Rice, vegetables, and forests just form the “producer” of converting solar energy. The farm also owns 20,000 pigs. And hundreds of cows, animals constitute the main “consumer” of the ecosystem, use straw, leaves and vegetables to process animal feed, and animal excrement and high-concentration organic wastewater discharged from meat processing plants are sent to In biogas digesters fermented by gas, biogas is generated through the action of the “decomposer” microorganisms to provide energy for the production and living of Maya farms. The waste in the fermentation tank is precipitated, and the solid and liquid are separated, and the liquid waste is sent. Oxygen