Method for preparing heavy metal adsorbent by utilizing caustic dross

The invention discloses a method for preparing a heavy metal adsorbent by utilizing caustic dross. The method comprises the following steps: (1) pretreating caustic dross; (2) synthesizing a powdery adsorbent; (3) preparing a forming adsorbent; (4) applying high-concentration heavy metal waste water...

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Bibliographische Detailangaben
Hauptverfasser:	SHEN JINYOU, WANG LIANJUN, DONG XIAOLI, SUN XIUYUN, ZHOU SONGZHAO, LI JIANSHENG, YAN YUBO, WANG YANPENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention discloses a method for preparing a heavy metal adsorbent by utilizing caustic dross. The method comprises the following steps: (1) pretreating caustic dross; (2) synthesizing a powdery adsorbent; (3) preparing a forming adsorbent; (4) applying high-concentration heavy metal waste water. According to the invention, solid waste caustic dross of ammonia alkali factories is adopted as raw material to prepare a heavy metal adsorbent which is high in adsorption efficiency and is environment-friendly; not only is a high-additional-value resource road found for the caustic dross, and the solid waste treatment pressure of the ammonia alkali factories is relieved, but also the environment-friendly concepts of 'turning wastes into wealth' and 'treatment of wastes with processes of wastes against one another' are realized.