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回顧丨煤化工廢水、膜法技術 工業節水與污水資源化專場都是熱點！

2022-05-10 14:07:05 來源：環保在線 閱讀量：21329 評論

　　【農機網 會展快訊】“《2020-2021海水淡化年度報告》正式發布”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:工業節水與污水資源化就開啟了“續杯”模式。
 
(↑點擊進入直播間)
 
　　小伙伴們，中國人民大學環境學院副院長、副教授劉國華的《工業廢水循環利用現狀和趨勢》主題分享，武漢天元工程有限責任公司總經理助理，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，杭州南方賽珀工業設備有限公司副總經理羅建華的《南方計量泵、加藥裝置在工業污水中的應用介紹》主題分享，你都趕上哪一場了呢？
 
　　“構建產學研協同創新模式和機制，以工業企業為主體，聯合高水平高校、科研院所的科技力量，或培養科技型企業內部的研發力量進行關鍵技術攻關”
 
　　——中國人民大學環境學院副院長、副教授劉國華
 
　　自2015年到2020年，全國規模以上工業用水重復利用率從89%增長到92.5%，總體上緩慢增長。隨著政策的積極推進，工業廢水循環利用勢在必行，我國也對鋼鐵、石化化工、有色金屬、造紙、紡織和食品6個重點行業提出了具體的目標，其中造紙、紡織和食品行業的提升幅度超過5個百分點。
 
　　當然，劉國華副院長也同時提到，目前推進工業廢水循環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)，目前水處理系統包括原水凈化、除鹽水系統、回用水系統、含油和生化污水處理、高含鹽水蒸發+結晶、循環水系統等等。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蒸發和MED多效蒸發在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能。而反滲透膜元件生產的發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/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，各個加藥環節主要應用到的設備包括計量泵、氣動隔膜泵、加藥裝置等”
 
　　——杭州南方賽珀工業設備有限公司副總經理羅建華
 
　　一般工業廢水處理特有的方法包括調節、中和、氧化還原、吸附、離子交換、吹脫、萃取等，由于工業廢水類型復雜、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，水生態環境保護工作縱深推進，工業節水和工業污水資源化處置仍是有效緩解水資源供需矛盾，管控水環境污染的重要路徑。而在全面打好碧水保衛戰的道路上，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:城鎮水務發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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