尽管操作过程简单,但是制作过程中需要大量的水,大概每公斤豆腐需要使用33升水。
Researchers found that this waste water could be turned into biogas if a certain type of bacteria is added to it.
研究人员发现,如果在这些废水中加入某种细菌就可以将废水转化为沼气。
Every day, the waste water is collected from various shops and treated with bacteria. Once transformed, the gas is pumped directly to local homes.
每天从各个作坊收集的废水被集中到一起,然后在里面加入细菌,随后就能产生沼气,即时供应给当地住户。
Besides creating a green energy source for locals, using all that waste water has significantly helped the local environment. Thousands of litres of waste water drained from raw tofu was once pumped daily from factories around the village into nearby rivers, befouling waterways and contaminating rice fields downstream.
这个方法不仅为当地提供了绿色能源,而且合理地处理废水对当地环境也是很好的保护。在此之前,每天制造生豆腐产生的成千上万升废水从村中各处的作坊排放到附近的河流中,污染了河流和下游的稻田。
Without all that wastewater lying around, farmers have seen an increased rice yield and the foul smell that comes with tofu production has left the area.
没有了废水的污染,水稻产量上升了,难闻的气味也没有了。
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2020-09-15
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