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普及“一杯水马桶” 南通上演节水“三十六计”

2017-08-14 12:02:49   中国青年网

列车员在马桶上摆放“放心使用”提示便笺(资料图)。 杨艳敏 摄

(砥砺奋进的五年)普及“一杯水马桶” 南通上演节水“三十六计”

中新社南京8月14日电 (记者 于从文)江苏南通新桥社区新桥北村27幢102室的便民理发室,客人比平时要多,老板何正义师傅忙着为客人理发,老板娘顾玉梅一边招呼客人,一边向客人介绍店里新装的节水马桶:“用的水真的很少,就一杯水,冲得很干净。”

经常在便民理发室理发的新桥北村的蔡老伯,看到了“一杯水马桶”的好处,现在,他盼望着政府下一次的老小区马桶改造,因前两次没在家而错过了安装机会,“我不能再错过了”。

顾玉梅所说的节水马桶,是南通当地官方推出的一项节水工程——为市区老旧小区居民家庭免费安装节水型马桶。这种马桶冲水量只有1.4升,是正常居民家用马桶用水量的1/4,被形象地称为“一杯水马桶”。3年来,南通投入600万元人民币,为老旧小区居民家庭免费安装了7000多套“一杯水马桶”,大大节约了老旧小区居民的生活用水。

事实上,南通是水资源相对较丰富的城市,但由于地处江河下游,水质条件并不好。南通市节水办主任马进说,南通是典型的水质型缺水城市,上世纪八十年代就开始做节水,进入新世纪特别是这5年,节水进入一个新的时期,形成工业节水、公共服务节水、居民生活节水全方位、全领域、全覆盖的节水大格局。

南通二棉纺织的“冬灌夏用”项目是工业节水的一个典型。棉纺行业是用水大户,2007年,二棉纺织开始建“冬灌夏用”节水工程。他们在冬天把水温10度到12度的地表水通过管泵压到地下承压水层,第二年夏天再抽上来用于纺织生产过程中降温,经过两次吸热,10度到12度的冷水升温到22度到24度,再放回到自然中。这个过程中,水没有发生任何化学反应,只是水温升高吸收生产中的热量,从而达到节水节能的目的。

二棉纺织综合管理部顾雪峰部长说,现在二棉在不同的厂区有3个“冬灌夏用”项目,每年节约用电1000万度,节水400多万吨。而南通也把二棉的经验向全市推广,目前已有6家大型企业在使用冬灌夏用节水。

在力推生活、工业节水,降低水使用总量的同时,南通还通过在污水处理以及再利用上发力,从另一个角度起到节水的效果。

能达水务是南通开发区污水处理企业,工业污水在这里经过6步工艺处理后,进入反渗透系统处理,产出高纯度的中水,沉积物再蒸发结晶,生产出结晶盐产品,真正实现了污水处理“零排放”。

能达水务的顾玉林副总经理说,现在公司每天产出高纯度中水近4万吨,供给附近的7家企业生产使用,这种高纯度中水可直接进锅炉使用,很受用户欢迎。(完)

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