濾水砂石 的英文怎麼說
中文拼音 [lǜshuǐshādàn]
濾水砂石
英文
filter sandstone-
The results also show that the filtration effect is improved by the sand coated with metal oxide, and coagulation which is combined with filtration can enhance the efficiency of algae removal
對水樣進行過濾處理,發現用金屬氧化物進行罩蓋過的石英砂對其過濾效果有所提高。A brief introduction is given to the treatment of the zeya dam foundation, principles of seepage control and design of the concrete face rockfill dam of the zeya reservoir. as for the excavation of the sand - gravel zones, except the toe slab and its 1 / 9 bottom width down stream, the alluvial layers are excavated to the micro - weathered rocks, while the other sections remain unexcavated. regarding to the treatment of the fracture zones, concrete filling is used for the toe slabs and semi - permeable materials are used for other section. according to the construction characteristics, a filter is placed in the down stream embankment foot. to improve the integrity of the dam foundation and anti - seepage capability consolidation grouting and curtain grouting are adopted. as a result safety, economic benefit, convenience in construction and good performace are achieved
簡要論述澤雅水庫面板堆石壩壩基處理和防滲的原則及設計要點.趾板基礎和堆石體各區砂礫石基礎開挖,除趾板與其下游1 / 9底寬范圍以及壩腳挖除沖積層至弱風化(局部微風化)基巖外,其餘部分均予以保留.斷層破碎帶處理,趾板部位採用混凝土塞,其它部位採用半透水料置換,並根據本工程特點在下游壩腳加設了反濾層.為提高壩基的整體性和防滲性能,對趾板進行了固結和帷幕灌漿.達到了安全、經濟、便於施工的目的,運行情況良好,可為面板堆石壩的設計和研究提供參考與借鑒In drainage of agricultural lands, a filter or gravel envelope is used to prevent the entrance of fine sand and silt into the drains.
在農田排水中常常採用礫石或過濾層來防止粉細砂和泥沙進入排水溝。Water purification lu : liao products mainly walnut shell lu : liao, fibres ball lu : liao, activated charcoal, anthracite lu : liao, quartz sand lu : liao, stone lu : liao, pp filters, rags, soft materials
凈水濾料產品主要有核桃殼濾料、纖維球濾料、活性炭、無煙煤濾料、石英砂濾料、麥飯石濾料、 pp濾芯、凈水劑、軟性填料等。In environment water treatment aspect, there are professional technology staff who are working on environment protect and dedicate to transplant foreign advanced technology, meanwhile they develop acidity / alkalescence waste water treatment technologies and equipment, soft water desalination technologies and equipment, high effectual lime preparation and putting set, high effectual integration putting set, at the same time, develop gravity sand filters, bevel precipitate set, many series of filter set, super filter set, prevent infiltration set, cooling tower, large - sized frothing water tank, cleaning device etc. all these technologies and equipments are domestic leading level
環保水處理方面,有專業從事環保方面的技術專業人員,在從事多方面環境污染治理工作的基礎上,致力於消化移植國外先進技術,研製開發出酸性/堿性廢水處理工藝和成套設備、軟水脫鹽水工藝和成套設備、高效石灰乳制備及投加裝置、高效一體化加藥裝置,同時開發出重力砂濾器、斜板沉澱器、多種過濾器、超濾裝置、反滲透裝置、冷卻塔、大型鼓泡水箱、清洗裝置等單體設備,這些工藝技術與設備均居於國內領先水平。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
本文對地表水廠的石英砂濾料黑化成因、控制技術及石英砂黑化濾料和清洗再生濾料對過濾的影響進行了研究。Up - flow filtration with coarse sand media, the water intaking from the bottom layer where the particle diameters of coarse media were the widest and outputting from the surface layer where the particle diameters of coarse media were the thinnest in the single media, was studied theoretically and experimentally in this research. it solved the difficult technical problem of reverse grain filtration
本文對粗石英砂濾料上向流過濾技術進行了理論和實驗研究,在單一的濾層中待濾水循粒徑最粗的底層進,從粒徑最細的表層出,攻克了「反粒度過濾」的關鍵技術。The conclusion is that iron ceramics media has a lot of advantages over sand media in the fields of filter run and yield. it has good quality of little hydraulic pressure loss, longer period and capabilities of impurity
結果表明,塗鐵陶粒濾料濾池具有過濾水頭損失小、運行周期長、截污能力強的優點,其過濾性能優于石英砂濾料濾池。Through the comparison experiments of removing organic pollutants from raw water between ceramics and sand media, it find that ceramics media ' s capability of removing organic pollutants from raw water is more better than that of sand ' s
對有機物的去除效果方面,塗鐵陶粒濾料與石英砂濾料的對比實驗結果也表明,塗鐵陶粒濾料去除水中有機物的性能大大優于石英砂濾料。Further, full - scale experiments were carried out and the results demonstrated that the up - flow filtration with coarse media was efficient in removal of suspended solid, backwash of cleaning, and long action cycle. an effluent turbidity of 1 ntu was always achieved with an average filtration rate of 20 m / h
生產規模的運行實驗顯示粗石英砂濾料上向流過濾對懸浮顆粒的去除是有效的,反沖洗干凈徹底,過濾周期長,當平均濾速為20m h時,出水濁度為1ntu 。The results showed : fiber ball has the highest efficiency among the three, its water - consumption is small in backwash and it is more wear - resisting ; the comprehensive property of quartz grain filter material is poorer ; manganese grain has an effective removal of fe ( superscript 2 + ) and mn ( superscript 2 + ) but water - consnmption is big
結果表明纖維球濾料除鐵濾速高,反沖洗耗水量小且耐磨損;石英砂濾料綜合性能次之;錳砂雖然除鐵效果較好,但反沖洗耗水量大。Pilot - scale experimental results showed that, comparing to conventional gravity filtration, the up - flow filtration has greater capacity in containing removed suspended solid and producing filtrate under the test conditions. coarse media with particle diameter ranging 0. 63 - 2. 00mm were used in order to apply relatively higher backwash rate of 21 l / ( m2. s ) for achieving better media clean - up after a filtration run. under the test conditions, the media thickness ranging 82 - 85 iron, water temperature ranging 6 - 27, and influx turbidity of 30 ntu, it achieved the results of the average filtration rate ranging 16 - 18 m / h, the average effluent turbidity of 1 ntu, and action cycle ranging 14 - 24h
中試研究結果表明,粗石英砂濾料上向流過濾比傳統的重力流過濾具有更大的含污能力和產水量,為適用較高的反沖洗強度( 21l ( m ~ 2 ? s ) )以便濾料清洗更干凈,採用粒徑范圍為0 . 63 2 . 00mm的粗石英砂濾料,濾層厚82 85cm ,水溫6 27 ,進水濁度為30ntu左右等情況下,能獲得平均濾速為16 18m h 、平均濾后水濁度為1ntu左右、周期達14 24小時的好效果。After 8 months of operation, 15 inspected quality indexes of the filtrate from filtration with the media met the standards for drinking water ( gb5749 - 85 ), indicating that either darkened sand or its regenerated sands could be used as filter media as the new sand
黑化石英砂與其酸、堿清洗再生砂對待濾水水中濁度,鐵、錳去除效果良好,運行8個月後檢測的15項水質指標都達到《生活飲用水衛生標準gb5749 - 85 》要求,且與新砂濾料的處理效果相差無幾。So far as the mixing material for building the earth - rock fill dam with clay core for shiquanhe hydropower station is concerned, the effect from the variation of the sand content for the filter material on the maximum dry density and the relevant parameters are to be determined within the variation area of the mixing mass ratio of ( 46 ~ 54 ) : ( 54 ~ 46 ) through this experiment, due to the max, dry density is largely influenced by the mixing ratio of both the lifter material and the clay and the sand content of the filter material, so as to determine the actual filling compactness of the mixing material of the core
摘要由於獅泉河水電站粘土心墻土石壩摻合料的最大幹密度受反濾料與粘土料的摻合比例、反濾料含砂率的影響較大,因此擬通過本試驗確定摻合質量比在( 46 ~ 54 ) : ( 54 ~ 46 )范圍變化時,反濾料含砂量變化對最大幹密度的影響程度及相關參數,從而確定心墻摻合料填築的實際壓實度。分享友人