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首页> 外文会议>Western Dredging Association Twenty-Third Technical Conference and Thirty-Fifth Texas Aamp;M Dredging Seminar; Jun 10-13, 2003; Chicago, Illinois >FLOCCULATION ENHANCEMENT TECHNOLOGIES FOR THE DREDGING CONTRACTOR: GUIDELINES FOR THE SELECTION OF A POLYMER SUPPLIER
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FLOCCULATION ENHANCEMENT TECHNOLOGIES FOR THE DREDGING CONTRACTOR: GUIDELINES FOR THE SELECTION OF A POLYMER SUPPLIER

机译：疏CON承包商的絮凝增强技术：聚合物供应商选择指南

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摘要

The use of synthetic organic polymers as flocculation enhancements have been used in the dredging industry for the past 30 years to speed up the release of free water from sediment particles in the dredge slurry in a variety of applications. In fact, there are over twenty-five current dredging applications where polymers have been used. The technology was first used by the writer to coagulate digested sewage sludge at The City of Milwaukee WWTP in 1973. A small MUD CAT horizontal auger dredge pumped the digested sludge from a pond mixed with water and the polymers were added about 200 feet into the dredge pipeline from the discharge. The slurry, with polymer added, was pumped into a small geo-container approximately 20 foot (6.09m) square by 7 feet (2.13m) high. Although this was a trial test, the system worked well, and when the bag was cut open (after 24 hours), the sludge had jelled to a cake like consistency. The sludge went from a solids content of 2.1% by weight to a solids content of 9% by weight. Polymer use continued to grow slowly in the dredging industry, and today it is a common practice to investigate the use of polymers in the dredging process, especially when dredged material disposal sites are limited in both number and proper size. Polymer cost ranges will be discussed, as well as dosage rates, and usually, polymer cost is given as a cost per yard of dredge material moved "in-situ".
机译：在过去的30年中，在疏ging行业中一直使用合成有机聚合物作为絮凝增强剂，以加速在各种应用中从疏edge泥浆中的沉积物颗粒中释放出游离水。实际上，目前有超过25种使用聚合物的挖泥应用。该技术于1973年由作者首次使用，用于将密尔沃基市污水处理厂的消化污泥进行混凝。一台MUD CAT卧式螺旋钻挖泥机将混有水的池塘中的消化污泥泵入，并在挖泥机中约200英尺处添加了聚合物管道从排出。将添加了聚合物的浆液泵入约20英尺（6.09m）平方乘7英尺（2.13m）高的小型地质容器中。尽管这是一个试验，但系统运行良好，当将袋子切开后（24小时后），污泥像稠度一样凝结成蛋糕。污泥从2.1重量％的固体含量变为9重量％的固体含量。在疏industry行业中，聚合物的使用继续缓慢增长，今天，在疏ging过程中研究聚合物的使用已成为一种普遍的做法，尤其是在疏material材料处置场所的数量和大小受限制的情况下。将讨论聚合物的成本范围以及剂量率，通常，聚合物的成本是以“就地”移动的挖泥机材料的每码成本表示。

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