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回顧丨煤化工廢水、膜法技術 工業(yè)節(jié)水與污水資源化專場都是熱點！

2022-05-10 14:07:05 來源：環(huán)保在線 閱讀量：21276 評論

導讀：5月10日9點，2022青島國際水大會專家大講堂 專場二：工業(yè)節(jié)水與污水資源化準時開講，精彩回顧看這里！

　　【農機網(wǎng) 會展快訊】“《2020-2021海水淡化年度報告》正式發(fā)布”的聲音言猶在耳(←回顧【2022青島國際水大會專家大講堂 專場一:海水淡化與濃鹽水綜合利用】)，2022青島國際水大會專家大講堂 專場二:工業(yè)節(jié)水與污水資源化就開啟了“續(xù)杯”模式。
 
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　　小伙伴們，中國人民大學環(huán)境學院副院長、副教授劉國華的《工業(yè)廢水循環(huán)利用現(xiàn)狀和趨勢》主題分享，武漢天元工程有限責任公司總經(jīng)理助理，碩士，高級工程師陳東祥的《煤化工及磷酸鐵廢水處理設計思路及工藝路線選擇》主題分享，藍星東麗膜技術(北京)有限公司技術部長/高級工程師趙杰的《膜技術在“污水提標改造和資源化再利用”應用及思考》主題分享，杭州南方賽珀工業(yè)設備有限公司副總經(jīng)理羅建華的《南方計量泵、加藥裝置在工業(yè)污水中的應用介紹》主題分享，你都趕上哪一場了呢？
 
　　“構建產學研協(xié)同創(chuàng)新模式和機制，以工業(yè)企業(yè)為主體，聯(lián)合高水平高校、科研院所的科技力量，或培養(yǎng)科技型企業(yè)內部的研發(fā)力量進行關鍵技術攻關”
 
　　——中國人民大學環(huán)境學院副院長、副教授劉國華
 
　　自2015年到2020年，全國規(guī)模以上工業(yè)用水重復利用率從89%增長到92.5%，總體上緩慢增長。隨著政策的積極推進，工業(yè)廢水循環(huán)利用勢在必行，我國也對鋼鐵、石化化工、有色金屬、造紙、紡織和食品6個重點行業(yè)提出了具體的目標，其中造紙、紡織和食品行業(yè)的提升幅度超過5個百分點。
 
　　當然，劉國華副院長也同時提到，目前推進工業(yè)廢水循環(huán)利用的過程中仍存在在核心技術攻關上急于求成、自主性和自律性不夠等問題。
 
　　“磷酸鐵生產過程中主要產生以硫酸銨為主的酸性廢水，多來源于磷酸鐵合成母液、磷酸鐵漂洗水等，根據(jù)廠家工藝的差異，部分廠家可能還會來源于轉化母液等”
 
　　——武漢天元工程有限責任公司高級工程師陳東祥
 
　　煤化工生產過程復雜，廢水來源廣泛，按性質可以分為有機廢水和清凈廢水(含鹽廢水)，目前水處理系統(tǒng)包括原水凈化、除鹽水系統(tǒng)、回用水系統(tǒng)、含油和生化污水處理、高含鹽水蒸發(fā)+結晶、循環(huán)水系統(tǒng)等等。隨著我國煤化工廢水處理從無害化逐漸趨于資源化，深度處理的要求也在同步拉升。
 
　　去除濁度/硬度采用石灰純堿和管式過濾的作用體現(xiàn)在哪里？COD深度脫除的吸附再生怎么做？BWRO濃縮與HPRO濃縮工藝的“分分合合”如何選擇？MVR蒸發(fā)和MED多效蒸發(fā)在TDS深度濃縮工藝中......這波技術流，值得細細揣摩，還有關于磷酸鐵廢水處理的設計思路和工藝選擇，留給你好好回顧啦。
 
　　“反滲透，或者說超微濾這種膜法的大規(guī)模應用，得益于技術的進步和制水成本的大幅下降，以海水淡化為例，從1991年的1.7美元/噸下降到了2001年的0.5美元/噸，我們目前的成本在4元/噸到6元/噸”
 
　　——藍星東麗膜技術(北京)有限公司技術部長趙杰
 
　　從項目上看，科威特Sulaibiya污水回用項目依舊是目前最大的污水回用項目，從國家和地區(qū)上看，新加坡在膜技術應用上是比較成功和全面的。我國，從2008年開始就成為了世界最大的水處理市場，包括反滲透、超濾和微濾。
 
　　當前反滲透膜主要研發(fā)方向包括更高的脫鹽率、更強的抗污染能力、更好的化學耐久性以及更低的操作壓力和更加節(jié)能。而反滲透膜元件生產的發(fā)展方向指向了高效制膜工藝、膜元件自動化卷制工藝、新型格網(wǎng)/寬流道、膜元件尺寸大型化、物理強度的增強等等。如果想了解TOUGH™膜元件，就要親自去看一看啦。
 
　　“在污水處理當中，各個加藥環(huán)節(jié)主要應用到的設備包括計量泵、氣動隔膜泵、加藥裝置等”
 
　　——杭州南方賽珀工業(yè)設備有限公司副總經(jīng)理羅建華
 
　　一般工業(yè)廢水處理特有的方法包括調節(jié)、中和、氧化還原、吸附、離子交換、吹脫、萃取等，由于工業(yè)廢水類型復雜、排放量大、危害性大且是重金屬污染的主要來源，因此不僅處理難度較高，且對污水處理和回用設備的要求也更高。
 
　　那么，關于機械隔膜計量泵的GM/GB/GX/2GX等系列選擇、計量泵管路口徑設計，成套加藥裝置的組成、絮凝劑PAM的使用等方面有什么說法呢？感興趣的小伙伴，不妨一看。
 
　　“十四五”時期，水生態(tài)環(huán)境保護工作縱深推進，工業(yè)節(jié)水和工業(yè)污水資源化處置仍是有效緩解水資源供需矛盾，管控水環(huán)境污染的重要路徑。而在全面打好碧水保衛(wèi)戰(zhàn)的道路上，市政污水處理的要求當然也不能放松。
 
　　沒錯，系列大講堂的專場三:城鎮(zhèn)水務發(fā)展與技術論壇可就要接棒啦。
 
　　上海市城市建設設計研究總院(集團)有限公司總工程師唐建國，中國市政工程中南設計研究總院有限公司，副總工兼研究院院長萬年紅，山東省城市供排水水質監(jiān)測中心主任賈瑞寶，專家陣容豪華。5月17日9點，我們還要準時“云”聚首哦。

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