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福建古村掀起“厕所革命”

2017-08-11 13:47:59   中国青年网

“前些年的厕所改造,为了不让改造后的卫生间排放污水直接排入沟渠,家家户户自发改造了卫生间、厨房的排水系统,建了各自的化粪池,把厕所污水接入各户化粪池初级处理后,再接入巷道的暗埋污水管道,与厨房灰水和雨水一起排入各家各户门前的沟渠。”陈峰介绍。

村委会还投入约26万元铺设了长1300米、直径400毫米的污水干管道,采取街巷水圳的底部空间与自然沟渠相结合的方式,不需要大面积开挖古巷道,还在不影响街巷空间处设置了检查井。这样,经管道收集的化粪池处理后的污水、从沟渠收集的厨房灰水以及雨水,均通过重力自流流入村落西南部面积约8.6亩的鹤池,全程无需任何动力。

传承千年的生态、生物处理方法是廉村生活污水生态化处理的精髓。廉村城堡地势东北高、西南低,千百年来在城堡的西南方向泥洼地带自然形成了鹤池,并一直承担着处理廉村生活污水的作用,是一片有着千年历史的生态湿地。

“鹤池水面密密麻麻长着的一种水生植物——水白菜,一年四季都能生长,根系十分发达,能直接从污水中吸收营养物质,这样就有效降解了水中的污染物,还去除了氮、磷。”廉村村委会主任陈绍山说。

鹤池处理后的尾水通过灌溉渠道流向最终受纳水体穆阳溪,灌溉渠道是明渠,长1200米,尾水流经期间,可以充分与空气接触,这又可以起到生物处理的作用。

“小厕所,大民生。”在一次专门为厕改举行的座谈会上,尤峰云认真地对廉村村民说。

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