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target="_blank">技术动æ€?/a> >> <span>正文</span></div> <!-- main_content begin--> <div class="maincontent"> <!-- left begin --> <div class="news_left"> <div class="brand_news_details"> <h1>土壤污染修复技术:创新是关é”?/h1><table style="border-bottom:1px dotted #e4e4e4;" align="center"><tr><td><div class="news_mes">文章来源åQšã€æœ¬ç«™åŽŸåˆ›ã€?作者:admin 点击åQ?span id="HitNum"></span>‹Æ?旉™—´åQ?span id="dTime">2021/5/19 15:21:02</span><input type="hidden" id="ID" value="100928993"/><input type="hidden" id="TypeID" value="2"/></div> </td> <td><div id="ckepop"></div></td></tr></table><div id="Content" style="display:none;">[土壤污染修复技术:创新是关键]:˜q‘年来,™åºåº”土壤环境保护的现实需求和土壤环境¿U‘学技术的发展需求,¿U‘学技术部、国家自然科学基金委、中国科学院、环境保护部½{‰éƒ¨é—¨æœ‰è®¡åˆ’地部¾|²äº†ä¸€äº›åœŸå£¤ä¿®å¤ç ”½I‰™¡¹ç›®å’Œä¸“题åQŒæœ‰åŠ›åœ°ä¿ƒè¿›å’Œå¸¦åŠ¨äº†å…¨å›½èŒƒå›´çš„土壤污...</div><div class="brand_news_con"> ˜q‘年来,™åºåº”土壤环境保护的现实需求和土壤环境¿U‘学技术的发展需求,¿U‘学技术部、国家自然科学基金委、中国科学院、环境保护部½{‰éƒ¨é—¨æœ‰è®¡åˆ’地部¾|²äº†ä¸€äº›åœŸå£¤ä¿®å¤ç ”½I‰™¡¹ç›®å’Œä¸“题åQŒæœ‰åŠ›åœ°ä¿ƒè¿›å’Œå¸¦åŠ¨äº†å…¨å›½èŒƒå›´çš„土壤污染控制与修复¿U‘学技术的研究与发展工作ã€? <br /> 《重金属污染¾l¼åˆé˜²æ²»â€œåäºŒäº””规划》指出,目前我国土壤修复工作的关键在于摸清情况,试点½Cø™Œƒå…ˆè¿›é€‚用技术,ä¸ø™§„模化开展修复工作提供依据。目前我国大量土壤修复技术研½I¶æˆæžœè¿˜å¤„在从实验室开发向规模化实用的˜q‡åº¦é˜¶æ®µåQŒå¤šæ•îC¿®å¤å·¥ä½œé¢ä¸´ä½“¾pÖM¸å®Œå–„åQŒæŠ€æœ¯æ°´å‡†ä½ŽåQŒå¤„理效果不理想åQŒé€‚用标准¾~ÞZ¹½{‰é—®é¢˜ï¼Œåœ¨ä¸­å›½çŽ¯ä¿äñ”业协会重金属污染防治与土壤修复专业委员会成立大会上,北京大学环境¿U‘学与工½E‹å­¦é™¢åˆ˜é˜³ç”Ÿæ•™æŽˆå¯ÒŽˆ‘国土壤污染修复技术进行了盘点ã€? <br /> 刘阳生介¾lè¯´åQŒâ€œé€‚用性的土壤修复技术,一般要¾låŽ†ä»Žå®žéªŒå®¤æ¦‚念设计、问题识别、模拟性控制实验,ž®è§„模场地实验,到技术示范,¿U¯ç¯å·¥ç¨‹¾léªŒåQŒæœ€åŽåŞ成实用性技术的½Ž¡ç†½{‰å‡ ä¸ªé˜¶ŒDµâ€ã€‚目前我国重金属污染土壤æ²È†æŠ€æœ¯ä¸»è¦æœ‰åQ? <br /> 客土¾|®æ¢æ³•ï¼Œæ˜¯å°†æ±¡æŸ“土壤挖走åQŒå¯¹å…¶è¿›è¡Œå›ºåŒ–稳定化处置和挥发性重金属热气化,æ²È†òq²å‡€çš„土壤可用于回填。刘阳生指出åQŒä¸€æ–šw¢ç”¨äºŽ¾|®æ¢çš„干净土壤数量有限åQŒå¦ä¸€æ–¹å¯¹äºŽå®Œå…¨é‡‡ç”¨å®¢åœŸç½®æ¢çš„修复方式åQŒéœ€è¦å°†¿U»èµ°çš„污染土壤需要填埋场圎ͼŒæ‰€ä»¥è¯¥æ³•ä¸€èˆ¬é€‚用于严重污染的ž®è§„模场åœîC¿®å¤ã€‚对于采用客土稀释方式进行修复的场地åQŒéœ€è¦æŽ§åˆ‰™‡é‡‘属的下渗,防治对地下水的污染ã€? <br /> 电动力学修复åQŒæ˜¯ž®†æ±¡æŸ“物‹¹“羃在阴极或者阳极附˜q‘,通过泵将污染水体抽出åQŒç»˜q‡å¤„理后再补充地下水åQŒåœŸå£¤ä¸­æ±¡æŸ“物便通过˜q™ç§æ–¹å¼è¢«æ´—涤出来。该技术只能处理溶解在水中的重金属¼›Õd­;而对土壤中众多不溶解的重金属åQŒåˆ™éœ€é€šè¿‡è°ƒæ•´åœŸå£¤pH呈酸性或者加入大量的有机螯合剂以佉K‡é‡‘属¼›Õd­æº¶è§£˜q›å…¥æ°´æº¶æ¶ŒÓ€‚刘阳生介绍åQŒè¯¥ä¿®å¤æ³•ç”±äºŽæŠ€æœ¯å¤æ‚、受土壤环境的媄响较大,成本也相对较高,目前ž®šå¤„于实验室研究阶段ã€? <br /> 重金属热解法åQŒè¯¥æŠ€æœ¯é€‚于汞和ç ïL­‰æŒ¥å‘性强的重金属污染工业场地土壤的修复,但要注意重金属回收和废水的处理。经˜q‡çƒ­å¤„理的土壤,其含有的微生物和有机物被分解åQŒå¯¼è‡´åœŸå£¤åŸºæœ¬åŠŸèƒ½çš„丧失和沙化,因此不适合于农田土壤的修复ã€? <br /> 土壤淋洗法是ž®†æ±¡æŸ“土壤挖掘后½{›åˆ†‹z—æá”åQŒæ¸…‹zåœŸå£¤å†å›žå¡«åQŒè¿™ä¸€˜q‡ç¨‹äº§ç”Ÿçš„废水、污泥要˜q›è¡Œå¤„理。该技术对水溶性重金属去除效率很高åQŒå¯å¿«é€Ÿä¿®å¤æ±¡æŸ“土å£?光™€‚合于低污染土壤åQŒé€šè¿‡åŒ–学淋洗可以使土壤重金属‹¹“度接近或达到土壤的使用标准要求;ž®¤å…¶é€‚用于小面积污染场地(轻质土或砂质åœ?。但是这¿Uæ–¹å¼å¯¹æ·‹æ´—剂的要求较高åQŒè¦é€‰æ‹©çŽ¯å¢ƒå‹å¥½æ€§æ´—涤剂;另外åQŒé™¤äº†æ°´æº¶æ€§é‡é‡‘属外,对其它åŞ态的重金属去除效率较低。因此尚不能大规模应用于重金属污染土壤的修复ã€? <img alt="" src="http://www.trxfzb.com/uploads/allimg/210519/1-210519114019620.jpg" style="width:600px;height:400px;" /><br /> <img alt="" src="http://www.trxfzb.com/uploads/allimg/210519/1-210519114059340.jpg" style="width:450px;height:400px;" /> 圆筒式擦‹z—机由四个拖轮支撑,½{’体随着甉|œºã€å‡é€Ÿæœºå¸¦åŠ¨å¤§å°é½¿è½®ä½œä½Žé€Ÿæ—‹è½¬ã€‚含有惔团和石粉砂石的物料自˜q›æ–™å£ç»¾l™æ–™è£…ç½® ¾l™å…¥åQŒè¿›å…¥æ—‹è½¬æ»š½{’内的物料被滚筒内安装具有特定角度的搅拌装置和棒条不断的带è“v、抛赗÷€æ…拌,擦洗,自进料端到出料端¿UÕdŠ¨ ˜q‡ç¨‹ä¸­å¤š‹Æ¡åó@环过½E‹ä¸­è¢«é¡ºå‘或逆向的高压水柱喷淋不断洗涤,清洗òq²å‡€çš„物料经˜q‡å¸æ–™ç«¯è„±æ°´è£…置脱水后排出送往成品堆。含æœ?污惔的污水和¾l†ç ‚则通过出料端流出,˜q›å…¥ä¸‹ä¸€æ­¥ç²¾¾l†ç­›åˆ†å‡º¾l†ç ‚,¾U¯æƒ”‹¹†è¿›å…¥æ±¡æ°´å¤„理工艺ã€? 相较于其他淋‹z—设备,圆筒式擦‹z—机具备以下优势åQ? 1、处理能力大åQŒæ¸…‹z—能力强ã€? 2、长形圆æŸÞq­’体ä‹É物料在设备内的停留时间长åQŒç‰©æ–™ä¸Žç‰©æ–™ä¹‹é—´å……分摩擦åQŒä»Žè€Œå°†ç‰©æ–™è¡¨é¢çš„杂质和泥土分解òq¶æŒ‰å¤§å°¾cÕdˆ«åˆ†ç±»ã€? 3、筒体采用特ŒDŠé«˜è€ç£¨ææ–™åQŒåšå›ø™€ç”¨ã€? 4、采用重型èáu承,齿轮和拖轮ã€? 5、大输出功率的电机和齿轮¾pȝ»Ÿäº§ç”Ÿé«˜æ•ˆçš„扭矩ã€? <img alt="" src="http://www.trxfzb.com/uploads/allimg/210519/1-210519114444V5.jpg" style="width:600px;height:277px;" /> å¾äh£®çŽ¯å¢ƒæ˜¯ä¸€å®¶ä»¥çŽ¯å¢ƒå·¥ç¨‹åº”用技术研发äؓ核心、设备加工制造äؓ辅助的高¿U‘技环保企业åQŒè®¾å¤‡è´¨é‡ä¿è¯ï¼Œæœ‰æ„å‘的用户可电话联¾pÀLˆ‘们了解详情ã€?</div><div class="meneame"><span class="disabled">< </span><span class="current">1</span> <span class="disabled">> </span></div> <div style="text-align: center;padding-top: 10px;"><img src="/images/code.jpg" alt="å…Ïx³¨æœ‰æƒŠå–?" /></div> <div class="news_bot_mes">中国工业电器¾|‘:此内容è{载于合作媒体或互联网其它¾|‘ç«™åQŒä¸­å›½å·¥ä¸šç”µå™¨ç½‘登蝲此文å‡ÞZºŽä¼ é€’更多信息之目的åQŒåƈ不意味着赞同其观ç‚ÒŽˆ–证实其描˜qŽÍ¼</br>新闻、技术文章投½E¿QQåQ?28246603 邮箱åQšnews@cnelc.com</div> <h2 class="related">相关阅读</h2> <ul 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