| 1. | The filter manganese ore for water treatment
水处理用天然锰砂滤料 |
| 2. | Application of abr and cass technology in treatment of slaughterhouse wastewater
砂滤工艺处理漂染废水 |
| 3. | Design and operation of paques biological sand filtration for dynamic denitrification
帕克活性生物砂滤脱氮工艺的设计与运行 |
| 4. | Biological sand filter
生物砂滤池 |
| 5. | By research of mechanism of air and water anti - washout of the porcelain sand filter
本文还对瓷砂滤料气水反冲洗的机理进行了研究。 |
| 6. | In smoke shan among the course , can is it come down to stop grades of detailed sand grain , form steady sand strain layer
在抽i油过程中，能将级细的砂粒阻挡下来，并形成稳定的砂滤层。 |
| 7. | Results indicated that mn , fe , al were the main elements consisting in the darkened coating of the sand media
研究表明：石英砂滤料表面的黑化物质主要是锰、铁、铝等金属元素富集的结果。 |
| 8. | Physical stare : the manganese sand filter materials , in different content , are sieved and made of natural manganese sand or manganese
物理状态：该产品是用天然锰砂或锰矿石做原料，经筛选加工成含量不同的锰砂滤聊。 |
| 9. | By sampling in different filter layer and analyse of water head damage in all sampling point , i draw a condusion about filter function of porcelain sand filter is superior to the general filters
通过滤层分层取样，对各取样点的水头损失的分析，得出瓷砂滤料较一般滤料过滤性能优越的结论。 |
| 10. | Factors causing sandy filter - media darken , darken - controliing technology , and influence of darkened and regenerated sandy media on filtration in surface water plants are studied in this thesis
本文对地表水厂的石英砂滤料黑化成因、控制技术及石英砂黑化滤料和清洗再生滤料对过滤的影响进行了研究。 |
