Abstract
As a kind of domestic waste, eggshell has developed pore structure and good adsorption capacity. The material was selected as adsorbent to study the adsorption of total nitrogen and total phosphorus in water. After being modified by ferric chloride, its adsorption effect is greatly enhanced. The adsorption of nitrogen and phosphorus in water by eggshell modified by ferric chloride was studied under different conditions. The experimental results show that the adsorption capacity after modification is 15% ~ 40% higher than that before modification. The results of orthogonal experiment show that under the following conditions: pH value was 5.00, dosage was 0.050 g, time was 65 min, the maximum adsorption capacity of total phosphorus was 45.34 mg/g; under the following conditions: pH value was 4.50, dosage was 0.100 g, time was 60 min, the maximum adsorption capacity of total nitrogen was 79.91 mg/g.
Highlights
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
2.2.1 Eggshell modified by ferric chloride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
Q WKH RUWKRJRQDO H[SHULPHQW ZLWK 71 UHPRYDO FDSDFLW\ DV WKH LQGH[ DFFRUGLQJ WR WKH H[SHULPHQWDO UHVXOWV DQG YLVXDO DQDO\VLV WDEOH WKH EHVW FRPELQDWLRQ RI H[SHULPHQWDO FRQGLWLRQV LV $%& WKDW LV UHDFWLRQ WLPH LV PLQ GRVDJH LV J DQG UHDFWLRQ S+ YDOXH LV 7KH RUGHU RI LQIOXHQFH RI WKUHH IDFWRUV RQ UHPRYDO UDWH LV GRVDJH S+ DQG UHDFWLRQ WLPH 7KH DQDO\VLV RI YDULDQFH
Summary
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
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
