Adsorption performance of magnetic chicken manure biochar for tetracycline in aqueous solution

ZHANG Yong; TIAN Tian; LI Shefeng; WU Lei; HUA Chengwei; ZHU Qing; GUO Feng

doi:10.13205/j.hjgc.202609005

Volume 44 Issue 9

Sep. 2026

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ZHANG Yong, TIAN Tian, LI Shefeng, WU Lei, HUA Chengwei, ZHU Qing, GUO Feng. Adsorption performance of magnetic chicken manure biochar for tetracycline in aqueous solution[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(9): 39-47. doi: 10.13205/j.hjgc.202609005

Citation:

ZHANG Yong, TIAN Tian, LI Shefeng, WU Lei, HUA Chengwei, ZHU Qing, GUO Feng. Adsorption performance of magnetic chicken manure biochar for tetracycline in aqueous solution[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(9): 39-47. doi: 10.13205/j.hjgc.202609005

Citation:

ZHANG Yong, TIAN Tian, LI Shefeng, WU Lei, HUA Chengwei, ZHU Qing, GUO Feng. Adsorption performance of magnetic chicken manure biochar for tetracycline in aqueous solution[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(9): 39-47. doi: 10.13205/j.hjgc.202609005

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Adsorption performance of magnetic chicken manure biochar for tetracycline in aqueous solution

doi: 10.13205/j.hjgc.202609005

ZHANG Yong^1,2,3,
TIAN Tian¹,
LI Shefeng^{1,2,3
,
,},
WU Lei⁴,
HUA Chengwei⁵,
ZHU Qing⁶,
GUO Feng⁴

1. School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China;
2. Pilot Base for Eco-Environmental Chemical Engineering and Low-carbon Technology Transformation, Wuhan Polytechnic University, Wuhan 430023, China;
3. Hubei Key Laboratory of Agricultural Waste Resource Utilization, Wuhan Polytechnic University, Wuhan 430023, China;
4. Gezhouba Group Eco-Environmental Protection Co., Ltd., Wuhan 430030, China;
5. Jiangsu Kintep Environmental Protection Equipment Co., Ltd., Taizhou 225300, China;
6. Quandu Environmental Protection (Wuhan) Co., Ltd., Wuhan 430300, China

Received Date: 2026-05-06
Available Online: 2026-11-05

Abstract

Abstract

In this paper， magnetic chicken manure biochar Fe-KBC was prepared by chicken manure， and its adsorption performance for tetracycline in aqueous solution was systematically investigated. Combined with FT-IR， SEM and N₂ adsorption-desorption techniques， the adsorption isotherms， adsorption kinetics， and adsorption mechanism were explored， and the effects of Fe-KBC dosage， initial tetracycline concentration， temperature， and pH on adsorption performance were systematically examined. Characterization results revealed that Fe-KBC possessed a large specific surface area of 1293.74 m²/g and a layered structure. The adsorption results showed that Fe-KBC exhibited excellent adsorption performance for tetracycline， and the saturated adsorption capacity reached 113 mg/g， 4.74 times higher than that of the original biochar. The optimal adsorption conditions for TC with an initial concentration of 50 mg/L were as follows： a Fe-KBC dosage of 0.5 mg/L， a temperature of 35 ℃， and a pH value of 4. The adsorption process fitted well with the pseudo-second-order kinetics and Freundlich model， and the adsorption mechanism was dominated by chemisorption. After 5 cycles of reuse， the TC adsorption rate of Fe-KBC still remained above 88%， indicating its excellent stability. These findings provide a theoretical reference for the high-value utilization of chicken manure and the preparation of green and high-efficiency adsorbent materials.
- chicken manure,
- biochar,
- adsorption,
- tetracycline,
- ferrous

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References(30)

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