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【绿色发展 绿色生活】威海市不断提高用水效率 节水工作成效显著
华能威海发电有限责任公司是威海市的另一个用水大户。在2000年,该厂用水量曾占整个威海市用水量的九分之一。近年来,该公司投资建成了日处理污水1400多吨的污水处理站,回收并处理电厂生活区及附近企业、村庄的生活废水,回收利用率达100%,真正实现了生活污水和工业废水的零排放和循环利用。华能威海电厂污水处理班班长王朝玉说:“如果没有我们这的话(污水处理站),工业用水就要用自来水,像今年这么干旱缺水,对社会也造成巨大的负担。我们把废水处理再利用完以后,一个是降低成本,水的使用成本,再一个我们是零排放,我们对污水处理以后,重复利用。”
此外,该厂还是全国电力行业第一家使用反渗透海水淡化技术作为生产用水的企业。建成了两期日产水能力分别为2500吨和7200吨的海水淡化装置,处理以后海水的脱盐率高达98%,彻底解决了电厂的生产用水,每年可节约300多万吨自来水,荣获并多年保持了“国家节水型企业”等荣誉称号。华能威海发电有限责任公司生产部高级工程师李青说:“自来水的成本是13块钱一吨,我们用它(海水淡化系统)得到的水不到10块钱一吨,对企业有好处,干水天我们不用发愁,不用停机组,海水是取之不尽的,我们用海水来发电。
由于节水力度不断加大,置换出大量的淡水资源,威海市在企业生产规模扩大的情况下,反而实现了用水量的微降。威海市水资源管理办公室法规科科长孔旭说:“按说随着企业生产规模的扩大,用水量应该是一个逐年上升的趋势,但是从我们的统计来看,不仅没有上升,还略微有点下降。”
近期,威海市节约用水条例有望出台。未来,在计划用水方面将更严格,管理也将更精细。
山东威海是全国第一个卫生城市,碧海蓝天空气清新
威海还被评为国家园林城市和国家森林城市
在威海刘公岛水域飞翔的海鸥
根据环境保护部的监测,威海国际海水浴场水质优,最适宜游泳
威海是联合国认定的世界上最适合人类居住的城市之一,曾荣获联合国人居奖
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