Clinoclasite, olivenite, cornwallite, cornuhite, conichalcite, adamite, duftite, hayldonite, mimetesite, carminite, dussertite, scorodite, Ba-bearing pharmacosiderite and heudanite. The physical properties, optical constants, chemical composition, X-ray data, infrared absorption spectra and differential thermal analyses of the minerals are given in this paper, which serve as a sheet of fairly perfect data for arsenate minerals in China.

是有疑義的礦物；而光線石5060网一级A片、墨綠砷銅石尤物国产一区二区三区、羥砷銅石、乳砷鉛銅石美国老人一级黄片视视、砷鉛鐵石99riav在线一区、綠砷鋇鐵石及含鋇毒鐵石等是在國內(nèi)首次發(fā)現(xiàn)的礦物；橄欖銅礦A片大全片在线看,欧美淫荡...、砷鉛石等在國內(nèi)未見有其礦物學數(shù)據(jù)的公開報導欧美视频一区二区视频在线。

The investigation results indicate that:(1) During the process of waste acid, based on the proposed result of air oxidation flocculent precipitation, arsenic in waste acid can be transformed to high-class white arsenic or arsenic acid copper product.

在前人研究結(jié)果的基礎上，根據(jù)含砷污酸與含砷廢渣中主要元素存在形態(tài)和性質(zhì)提出了用空氣氧化絮凝沉淀法從污酸制備砷酸銅和白砷新處理工藝国产极品白嫩精品久久久久；提出了銦生產(chǎn)過程中選擇性硫化沉淀除砷亚洲色图一区二区，提出了含砷廢渣對土壤影響的治理方案。

Compared to wet season, arsenic is difficult to mobile in dry season. Attenuation constant in dry season is 0.3082(1/km), but it is 0.0569(1/km)in wet season. If initial concentration of As was 500μg/L without other contamination source in down stream, arsenic would deceased to 50μg/L in down stream 7.5km in dry season but 40km in down stream 40km. As is dominate species in river running throμgh mining area.

砷在枯水期較豐水期難以遷移一级特黄AA片免费观看，通過計算得到欧美日韩国产免费午夜在线观看，在枯水期砷的衰減系數(shù)K值為0.3082(1/km)久久一级片视频，而在豐水期為0.0569(1/km)；在污染口濃度達到500μg/L時亚洲综合爱爱12p，下游沒有其它的砷的污染源(或會影響砷衰減的其它污染源)時免费视频精品一区二区三区，枯水期砷會在下游7.5km之后濃度降到50μg/L，而豐水期則要在下游40km之后才能降到同樣的值直接在线免费看黄网站，所以在豐水期砷污染的影響的流域更廣美女被插出白浆。

When pH is 10, adsorption time is 30 min, dosage of bone char is 0.6 g/L, the original concentration of As in drinking water is 0.5 mg/L, As removal can reach 95.2%. The adsorption behavior is fitted both with Langmuir and Freundlich isotherm. The adsorption mechanism is supposed to be Ca—OH functional groups combined with anion. And there may occur the co-precipitation between calcium hydrogen arsenate and hydroxylapatite in the aqueous solution, and ions also exchange. The saturation adsorption capacity of As reaches 4.688 mg/g. Indexes of effluent are in good agreement with the WHO stringent drinking water standards (0.01 mg/L).

研究結(jié)果表明：在pH=10，吸附時間為30 min和骨炭加入量為0.6 g/L爱爱网站永久免费，飲用水砷初始質(zhì)量濃度為0.5 mg/L時其砷去除率可達95.2%；骨炭吸附砷的行為同時符合Langmuir和Freundlich等溫吸附模型久久久久99精品免费；其吸附機理可能是Ca—OH官能團結(jié)合HASO4陰離子女被操网站，并產(chǎn)生砷酸氫鈣和羥基磷灰石的共沉淀，另外還存在離子交換作用91久久精品一区二区三区；吸附柱的飽和吸附容量為4.688 mg/g欧美在线视频干美女；出水砷濃度符合世界衛(wèi)生組織規(guī)定飲水砷標準(0.01 mg/L)。

The results showed that As forms in soils were mainly composed by fixed forms of As when As added at high rate and soil As for ms were mainly composed by labile As,esp.exchangable As,when As added at low rat e.The lability of soil As was improved when astragalusy was added.

結(jié)果表明欧美一区二区激情，外源砷濃度高時土壤砷形態(tài)以固定態(tài)砷為主黄色网站点击进入，外源砷濃度低時以活性態(tài)砷為主，尤以交換態(tài)砷為主日韩偷拍精品另类视频；施入紫云英土壤砷的活性增強被窝网一级毛片；土壤AEC與活性砷含量呈線性正相關。

It is very peculiar that the region of arsenism and the number of arsenism people caused by burning high arsenic coals.

因此根據(jù)目前國內(nèi)外對煤中砷的研究進展99热思思在线国产，在全國范圍內(nèi)有計劃取樣国产激情自拍，研究中國煤中砷的含量、分布及其影響因素欧美少妇熟女性爱视频；探討我國煤砷的賦存狀態(tài)91在线国内在线自产；選擇大氣中出現(xiàn)砷異常的西南地區(qū)，研究煤中砷脫洗機理免费二级毛片免费完整视频；在室內(nèi)模擬燃燒的基礎上欧美日韩亚洲，研究燃煤砷排放機制。

A compartmented soil-glass bead culture system was used to investigate characteristics of arsenic accumulation in iron plaque and in mature rice plants irrigated using water with arsenic in greenhouse.

采用土壤-玻璃珠聯(lián)合培養(yǎng)的方式天堂资源最新版网页，選擇2個氧化能力不同的水稻品種YY-1色哟哟视频网、94D-64和采自浙江富陽的土壤(砷的本底值為13.8 mg.kg-1)，并設灌溉清水和含砷水2個處理(即在分蘗期五月丁香花综合网、拔節(jié)期最新3D动漫H福利在线观看、孕穗期、開花期和灌漿期5個生育階段灌溉含砷污水国内视频日韩精品视频在线播放，隨灌溉水進入土壤中砷的濃度為3.2 mg.kg-1)久99久精品免费视频12，研究了砷在土壤-根表鐵氧化物-水稻系統(tǒng)中的累積規(guī)律以及土壤和灌溉水對水稻秸稈和籽粒富集砷的貢獻程度。

A compartmented soil-glass bead culture system was used to investigate characteristics of arsenic accumulation in iron plaque and in mature rice plants irrigated using water with arsenic in greenhouse. Arsenic was supplied as a solution of Na3AsO4·12H2O at the following stages: tillering, stem elongation, booting, flowering and grain filling.

采用土壤-玻璃珠聯(lián)合培養(yǎng)的方式，選擇2個氧化能力不同的水稻品種YY-1玖玖玖玖色在线观看播放、94D-64和采自浙江富陽的土壤（砷的本底值為13.8 mg·kg-1）亚洲欧美中文日韩激情，并設灌溉清水和含砷水2個處理（即在分蘗期、拔節(jié)期αⅴ插插、孕穗期日本美女免费黄色网站、開花期和灌漿期5個生育階段灌溉含砷污水，隨灌溉水進入土壤中砷的濃度為3.2 mg·kg-1）夜晚av网站，研究了砷在土壤-根表鐵氧化物-水稻系統(tǒng)中的累積規(guī)律以及土壤和灌溉水對水稻秸稈和籽粒富集砷的貢獻程度国产下药迷在线视频。

Theresults indicated that the initial desorption rate of As was higher than As, but thefinal desorption percentage of As was two times higher than As; that in therange of pH(6.5-8.5), the desorption of As was the lowest（pH=6.5）,and thepercentage increased with the pH value increasing or deescalating, but for the As,thepercentage increased with the increase of pH; that the supersonic accelerated desoptionof arsenic and the final percentage was lower than non-supersonic; that on the conditionof UV-light ,in a word, it took negative effect to desorption The"reproduced process"has been used in the procedure of regeneration.

實驗結(jié)果表明，初始階段不卡免费黄色小视频，三價砷的脫附率高于五價砷男女八x八x视频网站，但最終脫附率三價砷低于五價砷；三價砷无码AV一区二区大桥久未、五價砷在不同溫度下的脫附實驗表明三價砷的最佳脫附溫度低于五價砷的最佳脫附溫度看黄免费看；在pH=5.5-8.5時，隨著pH的增大可以的黄色网站有哪些，五價砷的脫附率具有先減小再增大的趨勢欧美日韩综合自拍小说网站，在pH為6.5時脫附率降至最小加勒比在线视频一区；在pH=5.5-8.5時黄免费视频色，三價砷的脫附率隨pH的增大而增大；不論是三價砷還是五價砷的脫附過程欧美日韩com，超聲波條件都會促進脫附速率(來源：ecABC論a4文網(wǎng)www.abclunwen.com)的增加欧美xxxxx又大又粗，并且最終的脫附率要高于無超聲波條件下的脫附率；紫外光照條件下国产全黄a一级毛片，隨著光照時間的增加18禁毛片免费无遮挡无风险，兩種價態(tài)砷的脫附率會達到一個較高的值，再降低能看av得网站∩湟淮问悠低荆總體而言，紫外光照的存在不利于脫附的進行国产a片区真实,乱伦。

The removal of arsenic from solution has relied mostly on precipitation and adsorption processes and it has been considered that arsenic is the oxidation state that leads to the most effective removal by precipitation since the simple metal arsenates generally have lower solubility than the arsenites, and also arsenate is more strongly adsorbed on certain substrates, but this is pH dependent.

從溶液中去除砷主要依賴沉淀和吸附過程久久精品青草社区免费，并且要考慮+5價砷是氧化態(tài)，會導致通過沉淀最有效去除砷免费污色网站，因為簡單的金屬砷酸鹽比亞砷酸鹽一般有更低的溶解度人人干人人肏，并且砷酸鹽在特定情況下有更強的吸附能力，但是這取決于 pH 值亚洲一级二级。