CCTV-9 中国通过污泥处理减少碳排放

  

 

        欢迎收看CCTV国际频道，让我们看一下这个时段的新闻头条。

        尽管哥本哈根峰会并没有达成实质性结果，但中国与气候变化坚决斗争的立场和承诺给世界留下了深刻的印象。以下由记者郑峻峰报道。

        中国总理温家宝在哥本哈根的最后一天代表中国向全球领导者做出了中国的无条件承诺。

温家宝说：“减缓温室气体的排放的目标是中国根据国情采取的自主行动，是对中国人民和全人类负责的，不附加任何条件，不与任何国家的减排目标挂钩，我们言必信，行必果。无论本次会议达成什么成果，我们都将坚定不移地为实现甚至超过这个目标而努力。”

        温总理所宣布的二氧化碳减排目标是，与2005年碳排放水平相比，单位GDP二氧化碳排放量削减40%—50% 。中国代表团中的其他代表也对中国的立场做出强烈的回应。世界野生动物基金会、牛津国际、绿色和平国际等国际组织都高度评价了中国为全球碳减排所做出的巨大的贡献。

 

        干净整洁的海滨城市大连，正在通过其市政污泥处理项目来帮助中国政府履行减排承诺。

       “众所周知，二氧化碳是一种重要的温室气体。但是许多人并不知道其他的气体也可导致全球变暖，比如甲烷。坐落在大连的污泥处理厂不仅促进了当地的循环经济发展，而且帮助减少温室气体排放。”

        市政污泥处理听起来并不是一个时尚的行业。但如果市政污泥得不到妥善处理，污泥将会产生大量的甲烷。与二氧化碳相比，甲烷所造成的温室气体效应是二氧化碳的20倍。

        大连城建局副局长闪红光先生说：“为了产生规模经济效益，我们要求大连所有的市政污泥都集中到一个污泥处理厂进行处理。经过了一段时间的调研后，我们决定采用厌氧消化技术，因为这种市政污泥处理技术远远领先于其他的市政污泥处理技术。

        厌氧消化技术以市政污泥作为原料生产沼气，并将其收集在这些巨大的绿色钢罐中，产生的沼气中含有大量的甲烷。

        大连东泰产业废弃物处理有限公司董事长董金庆先生说：“我们每年可生产并收集甲烷4000吨，这相当于每年减排二氧化碳80000吨。”

        污泥经过处理产生的沼气被收集起来，从而减少碳排放，但是这些沼气又有什么用途呢？董金庆先生说：“产生的沼气中的20%用于加热消化罐使其保持恒温，剩余的80%通过管道输送给当地的煤气公司。”

        董金庆先生说：“这些沼气经过提纯后可以达到天然气的品质。我们将天然气通过管道输送给大连煤气公司。我们每天生产的燃气可以满足3万户居民的日常使用需求。”

        大连煤气公司副总经理，卢守卫先生说：“大连是一个天然气资源匮乏的城市。以前我们要每天从原油产地进口天然气。当大连东泰的市政污泥处理厂满负荷生产后，所产生的天然气将可以满足整个城市10%的用气需求。东泰公司与煤气公司的合作同样可为大连东泰带来很高的收入。”

        通过科技创新和良好的管理，大连正在向世人证明充满臭气的市政污泥不再是令当地政府感到头痛的难题，而是提供清洁能源和节能减排的宝贵财富。

 

 

China cuts emissions by treating sludge

First, let’s look at the top stories, that making headlines at this hour. Though no concrete goals were reached at the chaotic Copenhagen summit, China has impressed the world with its stance and commitment to combating climatic change. Zheng Junfeng has more. On his last day in Copenhagen, Chinese Premier Wen Jiabao told global leaders China’s unconditional commitments.

Chinese Premier Wen Jiabao said:” The Chinese government has set targets for mitigating greenhouse gas emissions. This is a voluntary action China has taken in the light of national circumstances. We have not attached any condition to the targets， not link it to the target of any other countries. We will honor our word with real action. Whatever outcome this conference may produce, we fully committed be fully achieving and even conceding this target. 

The target that Wen Jiabao spoke of is to cut carbon dioxide per unit of GDP by 40%-45% compared to the level in 2005, other representatives from the Chinese delegations also strongly voiced China’s stance. On December 9th, a number of developed nations lead by Denmark proposed a draft, it weakened developed nations’ obligations, said difficult tasks for developed nations, the Chinese delegations responded swiftly and firmly.  

Several international organizations including World Wild Life Fund, Oxford International, and Green Peace International has spoken highly of China’s reaction saying, it’s making great contribution to global efforts. 

Regardless of what came out of the Copenhagen conference, Premier Wen Jiabao has vowed China would do its best to reduce greenhouse gas emissions.

 

The clean coastal city of Dalian is already helping to fulfill the governments pledge by treating sludge.

"As we all know, carbon dioxide is an important greenhouse gas. But many may not know that other gases, such as methane, also contributes greatly to global warming. That sludge treatment plant here in Dalian not only bolsters a recycling local economy, but helps reduce greenhouse gas emissions."

Sludge treatment doesnt sound like a very fashionable business. But if not properly treated, sludge can gradually generate methane, a greenhouse gas over 20-times more effective in trapping heat in the atmosphere than carbon dioxide.

Shan Hongguang, Deputy Director, Dalian Urban Construction Bureau, said, "We order all sludge in the city to be transported to one digestion plant for an economic scale. Then after research, we decide to use anaerobic digestion technology, the best among a variety of techniques in treating sludge."

Anaerobic digestion generates biogas with a high proportion of methane, which is captured in these huge green steel tanks.

Dong Jingqing, Chairman of Dalian Dongtai Industrial Waste Treatment, said, "We can collect 4-thousand tons of methane every year. Thats equivalent to reduction of 80-thousand tons of carbon dioxide."

Now the methane is captured, and emissions are reduced What do they do with the methane? Dong Jinqing from Dalian Industrial Waste Treatment says 20-percent of the gas is used in heating the tanks for digestion, and the rest is transported to the local gas company.

Dong Jingqing, Chairman of Dalian Dongtai Industrial Waste Treatment, said, "After we filter the biogas, we get natural gas. We transport it to the Dalian Gas Company. The gas we supply every day is enough for 30-thousand households to use."

Lu Shouwei, Vice General Manager of Dalian Gas Company, said, "Dalian is a city thirsty for natural gas. We import gas from oil wells every day. When Dongtai sludge treatment plant reaches its full capacity, it can provide us almost 10-percent of the whole citys gas demand. The cooperation also brings Dongtai good revenue."

Dalians proving that through technology innovation and good management, the smelly, muddy material will no longer be a headache for city governments, but a treasury for clean energy and emission reduction.