新闻
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China

海口 让城市回归自然(美丽中国·调查)

2017-08-04 04:35:35   中国青年网

经反复实验,3.5万平方米的垃圾堆填场进行全面生态修复,其中1.4万平方米用于建设八级大型梯田湿地,接入周边丁村等地已有的污水管网进行污水处理。完全投入使用后,这片湿地近期每天可处理0.5万吨生活污水,相当于解决周边约1.5平方公里范围内近6000户居民的污水处理问题,远期可实现日处理1万吨污水处理厂尾水。

在寸土寸金的城区建设大规模湿地,层层过滤净化水质

在凤翔八级梯田湿地,我们看到,水生植物包括美人蕉、再力花、芦竹、睡莲等10余种。

一级处理单元最先接触污水,选择的是美人蕉、再力花、芦竹等耐污能力强、根系发达、茎叶茂密的水生植物。二、三级处理单元,水质逐步向好,增加了睡莲等景观效果较好的水生植物。人工梯田湿地和原有剩余乾坤湖自然湿地连接,疏通河道,形成了一边可净污、一边可排涝的生态水系统。

湿地相关设计单位工作人员介绍,污水流过人工湿地时,经湿地里填料基质过滤,植物吸收及附着于根际和填料的多种微生物代谢活动,废水中的不溶性有机物被截留,可溶性有机物被分解、去除,营养物质被吸收,水质得到净化。

中国城市规划设计研究院水务分院能源所副所长王晨说,和传统污水处理厂相比,凤翔梯田湿地投资少、运行成本低,景观效果好、且可作为苗圃基地,建设周期短、平均建设周期在3个月以内,运行管理比污水处理厂简单、便捷,完全采取生物方法,电气设备仅有几台污水泵,定期对水生植物进行收割即可。

“虽然湿地处理污水优势比较多,但这种方法占地面积较大。排除原有地理环境、湿地本底等客观条件外,在寸土寸金的城区中间采用这种方式处理污水,需要树立生态优先的决心,也需要统筹城市生态保护和持续发展的关系。”王晨认为。

生态修复,让自然多出力做工,形成良性循环

在凤翔湿地的建设中,海南省长沈晓明要求:“多留点绿地和空间给百姓,城市规划建设管理成效以人民群众满意度来衡量。”

为有效推进生态修复,海口不断探索更好的办法:一方面,继续加大整治力度,建立有效机制,防止破坏—修复—破坏的恶性循环;另一方面,让自然多出力做工,形成良性生态修复循环。

为了防止整治好的环境被再次破坏,海口采取了治理与立法同步的做法。

海口市生态环保局局长刘冬介绍,在行政执法方面,海口改变了行业单边作战的方法,市区两级环保、水务、市政等部门联合行动。对已经形成治理效果的美舍河,制定《海口市美舍河保护管理规定》进行立法保障。下一步,海口将在阻止面源污染的同时,加大海绵城市建设改造,净化初级雨水,加快建设五源河湿地和美舍河湿地。

同时,当地还以成熟的水环境治理和生态修复为示范,在全市32个水体全面推广,建立尊重自然、顺应自然、保护自然的河岸护岸,自然留存地方特色的水体沉水生态系统,逐步修复和疏浚地下网管。计划今年内将推进美舍河五公祠下游段的生态改造,包括保护功能性广场的建设,护岸的改造和修复。

上一页2/2下一页
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China

相关阅读

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China
分享到:
0 0
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China

美图推荐

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China

为您推荐

加载更多>>
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033652_2.html
Server: cms-8-251
Date: 2024/07/01 01:18:42

Powered by China
China