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              <br>
              </span><p align="center"><span class="heading"><a href="#1">好氧 UNITANK&reg; </a>| <a href="#2">厌氧 UNITANK&reg; </a><br /></span></p>
<p align="left"><span class="heading">作为比利时第一个生物污水处理服务商，吉宝西格斯的经验追溯到1981年，其时，发展了第一个UNITANK&reg;设施。</span></p>
<p align="left"><span class="heading">此项独特技术综合了传统的集合性活性污泥水处理站的所有优势和SBR系统全部优点，其结果就是一个紧凑、高效、持续的被称为UNITANK&reg;的生物污水处理厂。</span></p>
<p align="left"><span class="heading">20年后的今天及拥有500多满意的客户后，第三代UNITANK&reg;仍是生物污水处理的绝对方法。</span><br /></p>
<b></b>
<div class="waterheader"><a name="1"></a>生物废水处理技术 -  好氧 UNITANK&reg;</div>
<p><b><u>第三代UNITANK&reg;基本工艺</u></b></p>
<p><b><img width="130" vspace="2" hspace="6" height="120" align="left" alt="water treatment with unitank technology" src="/files/Solutions/Water_UnitankBas.jpg" longdesc="water treatment with unitank technology" />应用范围</b> <br />好氧UNITANK&reg;基本工艺是一种能完全去除市政以及多种低污染工业废水中BOD含量的有效方案。</p>
<p> </p>
<p> </p>
<p><b>优点</b><br />结合我们先进的自动化控制系统，UNITANK&reg;基本工艺与传统活性污泥法相比具有明显的区别，其优势表现在：</p>
<ul>
  <li>紧凑的模块化设计 </li>
  <li>较短的建筑周期 </li>
  <li>先进的设备和仪器</li>
  <li>简单灵活的操作 </li>
  <li>稳定可靠的净化处理工艺 </li>
  <li>高效的处理率 </li>
</ul>
<p><b>工艺介绍</b><br />UNITANK&reg;基本工艺的每条处理线由三个隔开的活性污泥反应池组成。所有反应池都通过时间控制参数进行最优化控制，且可以同时作为曝气和沉淀池。</p>
<p>UNITANK&reg;基本工艺是依次按照&ldquo;从左到右&rdquo;和&ldquo;从右到左&rdquo;的流动模式，以保持生物污泥在三个相隔反应池内的最佳分布，因此无需采用传统&ldquo;连续流&rdquo;活性污泥系统中昂贵的支架和泵系统。&nbsp;<br /><br />此外，通过三池间的水力连通，还保证了在恒定水位下连续的污水进水和净化出水，这与普通&ldquo;序批式&rdquo;系统也有很大不同。</p>
<p>尽管三池具有曝气和沉淀的双重功能，但在设计中边池主要考虑达到最佳的污泥沉淀效果，而中池的大小取决于所需的曝气量。</p>
<p>  UNITANK&reg;基本工艺可以根据不同的占地面积、土质条件以及建筑要求，设计成不同的形状（I型，L型，U型或圆型）。 </p>
<p> </p>
<p><strong><u>第三代UNITANK&reg; 高级工艺</u></strong></p>
<p><b><img width="130" vspace="2" hspace="6" height="120" align="left" alt="water treatment with unitank technology" src="/files/Solutions/Water_UnitankAdv.jpg" longdesc="water treatment with unitank technology" />应用范围</b><br />适用于市政和工业废水。&nbsp;&nbsp;</p>
<p> </p>
<p> </p>
<p> </p>
<p><b></b></p>
<p><b>优点</b></p>
<ul>
  <li>先进的生物脱氮除磷工艺 </li>
  <li>硝化-反硝化菌的高效脱氮 </li>
  <li>聚磷菌的高效除磷 </li>
  <li>使用氧化还原电位作为好氧/缺氧/厌氧最佳比率的直接控制参数</li>
</ul>
<p><b>工艺介绍</b><br />硝化： NH<sub>4</sub>+ + 2O<sub>2</sub> <img width="28" height="14" align="absmiddle" alt="" src="/img/common/arrow.gif" />NO<sub>3</sub>- + H<sub>2</sub>O + 2H+ + 能量<br />将氨转化为硝酸盐的条件： </p>
<ul>
  <li>自养菌 (比如： 亚硝酸菌,       硝酸菌等) </li>
  <li>好氧条件  </li>
</ul>
<p>反硝化： 4 NO<sub>3</sub>- + 5 CH<sub>2</sub>O + 4H+<img width="28" height="14" align="absmiddle" alt="" src="/img/common/arrow.gif" />2N<sub>2</sub> + 5CO<sub>2</sub> + 7 H<sub>2</sub>O + 能量<br />将硝酸盐转换为氮气需要的条件： </p>
<ul>
  <li>异养细菌 </li>
  <li>缺氧条件  </li>
  <li>存在碳源 (CH<sub>2</sub>O)<br /></li>
</ul>
<p>磷酸盐的富集：</p>
<ul>
  <li>好氧菌可以聚集富含能量的聚合磷酸盐化合物，作为厌氧条件下生存的能量储备（当好氧和厌氧交替运行时）。 </li>
  <li>其选择性是基于在好氧条件下，与其他菌种相比，聚磷酸盐菌可以向自身提供内在碳源。 <br /></li>
</ul>
<div class="waterheader"><a name="2"></a>生物废水处理技术 -  厌氧 UNITANK&reg;</div>
<p><b><u>第三代UNITANK&reg; COMET工艺</u></b></p>
<p><b><img width="130" vspace="2" hspace="6" height="120" align="left" alt="water treatment with energy recovery" src="/files/Solutions/Water_UnitankComet.jpg" longdesc="water treatment with energy recovery" /></b></p>
<p><b>应用范围</b><br />高污染工业废水的预处理。</p>
<p> </p>
<p> </p>
<p><b>优点</b><br /></p>
<ul>
  <li>可适应高负荷 </li>
  <li>无需溶解氧，能耗低 </li>
  <li>低营养物需要量 </li>
  <li>产生可用作为高能量气体或燃料的生物可燃气体 </li>
  <li>低污泥产量 </li>
  <li>可长期保存</li>
</ul>
<p><b>工艺介绍</b><br />COMET  = 调节（Conditioning） 和甲烷化（Methanisation）<br /><br />调节<br />水解有机物（碳氢化合物，蛋白质和脂肪）<br />将可溶的和颗粒状的有机物微粒（如糖类，氨基酸和脂肪酸等）转化为挥发性脂肪酸（VFA）。</p>
<p>甲烷化<br />将VFA转化为甲烷和二氧化碳</p>
<p>局限性：</p>
<ul>
  <li>当用于预处理 <br /><img width="28" height="14" align="absmiddle" alt="" src="/img/common/arrow.gif" />部分去除COD和BOD<br /><img width="28" height="14" align="absmiddle" alt="" src="/img/common/arrow.gif" />没有去除营养物质 <br /><br /></li>
  <li>当用于更高的工艺要求<br /><img width="28" height="14" align="absmiddle" alt="" src="/img/common/arrow.gif" />比好氧处理敏感<br /><img width="28" height="14" align="absmiddle" alt="" src="/img/common/arrow.gif" />当水温低于20&deg;C时需要加热<br /><img width="28" height="14" align="absmiddle" alt="" src="/img/common/arrow.gif" />启动时间长 <br /><br /></li>
  <li>不良副产品<br /><img width="28" height="14" align="absmiddle" alt="" src="/img/common/arrow.gif" />H<sub>2</sub>S = 臭味和腐蚀性化合物 </li>
</ul>
<p><b>工艺介绍</b><br />作为一个两级处理系统，它由高负荷和低负荷两段活性污泥处理组成。其中第一段高负荷段产生&ldquo;富营养&rdquo;污泥，然后在后续低负荷段再进一步将营养物质去除。 </p>
<p>&ldquo;富营养&rdquo;污泥再进一步消化，产生沼气和能量。 .</p>
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