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1、Technical Report技术报告nextSand Filter Media 埃克斯过滤介质A report on the performance advantages ofhigh purity nextSand over conventional filter media forpressure and gravity filtration applications. 一份性能优异、高纯度的，优于常规滤料的一种过滤介质PREPARED BY:Tod S. Johnson, Ph.D.George A. Desborough, Geologist 托德.约翰逊 博士 乔治。地质学家 I
2、ntroduction 简介nextsand is based on a rare natural mineral that is highly processedand graded. Its unique properties allow it to radically alter the performanceand cost of media filtration. The hardness, stability and microporouscharacter of nextsand makes it a perfect filtration media forvirtually e
3、very application in the water and wastewater treatmentindustry.nextsand是基于一种罕见的天然矿物,具有高纯度特点。它的独特属性允许它彻底改变过滤和成本的媒体的过滤。硬度、稳定性和微孔nextsand特征使它成为一项完美的过滤介质，几乎应用在水和废水处理的各个领域。Features 特征 High filtration performance-3-5 micron removal. 高精度过滤，可达3-5微米 High capacity filtration throughout the entire nextsand bed
4、 depthprovides more than twice the capacity of multimedia filtration. 高容污率，是普通过滤介质的2倍 High flow 3-4 times that of multimedia with superior filtration. 高流速，是普通过滤介质的3-4倍 Long lasting media (5 years) not consumed in the process. 高使用寿命，持续使用5年 Simple periodic backwash keeps the media clean and operatinge
5、fficiently.高恢复率，容易反洗和清洁。Applications 应用 RO Pretreatmentsuperior SDI reduction RO反渗透前的SDI 去除 Cooling Towersunequalled Turbidity removal 循环冷却水过滤 Municipal Water Treatment, pressure and gravity filtershigherflow, lower pressure drop and superior filtration performance市政水处理，高流量、低压降等性能 Wastewater Polishi
6、ngexceptional TSS removal污水处理中SS值的去除。 Precipitated metals removal金属杂质的去除。 Carwash reclaim and recycling洗车水循环回用 Irrigation灌溉领域Physical Properties 物理特征 Composition成分 High Purity Alumino-Silicate高纯度硅铝 Size 粒径 0.4-1.4 mm (approx. 14x40 mesh)0.4-1.4 微米 Color颜色 Dark Gray 深灰 Surface Area 表面积 25m2/gram 25平米
7、/克重 Surface Absorption表面吸附 Hydrophillic 亲水性 Thermal Stability 热稳定性 Stable to 500 500度以下稳定 Coefficient of Uniformity 均匀系数 1.7 Bed Void Volume 孔隙体积 55% Surface Charge 表面电荷 Net Negative净负电荷 Bulk Density 堆积密度 55 lbs per ft3 (0.88 kg/L) Packaging 包装 1 ft3 bags, 1m3 supersacks 1方/包Summary & Conclusions 结论
8、The unique high purity silicate used for nextSand has the physical and mineral properties needed for reliable and e_cient water filtration applications. nextSand is a direct replacement (volume for volume) for sand, sand/anthracite or multimedia in pressure vessels or gravity beds. nextSand has a lo
9、wer dry bulk weight of 55lb/3 than sand or garnet, which translates to lower freight costs. nextSand performs as a true depth filterthe water flows through the porous crystalline matrix as well as around the nextSand granules in the filter bed. Based on published reports and NFTI lab and field data
10、the following conclusions can be made for nextSand filter media. First, nextSand is a superior filter media compared to sand, sand/ anthracite, sand/garnet or multimedia. Second, nextSand is cost-competitive with multimedia and eliminates the requirement for warehousing, shipping and loading multipl
11、e media layers into the vessel. Further, nextSand has several other advantages vs. conventional granular media, which are: nextSand more e_ectively removes fine particles (10). nextSand is inert and stable over pH range 1 to 12. The unique high purity of nextSand ensures superior hardness and abrasi
12、on resistance for longest media life. 独特的高纯度硅酸盐用于nextSand具有物理和矿石特性可靠，nextSand过滤水是一个直接替代(量)为体积砂,砂/无烟煤或多媒体技术在压力容器或重力床. nextSand较低的干燥体变模量体重55磅/ 立方，比砂或榴石,这意味着降低运输成本。nextSand执行作为一个真正的深度过滤介质，水流通过多孔晶体矩阵以及在nextSand颗粒床过滤器。根据公布的报告和NFTI实验室和野外数据得出的结论可以为nextSand过滤介质。首先,nextSand来说是一个非常优秀的滤料比砂,砂/无烟煤、砂/石榴石或多媒体。第二,n
13、extSand是以满足要求,消除了仓储、运输和加载多个媒体层深入容器。进一步,nextSand有几个其他的优点.媒体,传统的颗粒。nextSand更eectively移除精细颗粒( 10)。nextSand惰性和稳定pH范围在 1和 12。独特的高纯度的nextSand优越的硬度和耐磨性,确保最长的媒体介质的生活。使用说明 为了您能更好的使用埃克斯滤料，现提供几点说明：1. 罐体中的填充：布水器部分，要填6-8厘米的石英砂，以盖住布水器为准，上面再填充埃克斯滤料，滤层厚度根据不同场合填充，如果用在膜前精过滤，滤层厚800毫米，如果是浅层砂罐，则滤层厚400毫米、2. 填充完毕后，需要用水将滤料进行冲洗，因为本身会有一些粉尘存在，冲洗时间在20-30分钟，开始的时候会有青绿色的水流出、慢慢的变成乳白色直至变清，说明冲洗完毕，可以正常工作了。3. 砂罐的反洗根据进水的浊度，反洗压力不能低于0.2Mpa。 如有疑问，可以致电进行咨询！联系信息：北京洁孚天城水处理技术有限公司杨振华 18610713323010-89537539 北京洁孚天城水处理技术有限公司技术部 2011.1.1
