微生物負載熱活化矸石制凈水石的研究
發(fā)布時間:2018-05-08 15:44
本文選題:熱活化 + 煤矸石; 參考:《礦產(chǎn)綜合利用》2017年01期
【摘要】:煤矸石是一種以高嶺石為主要成分的硅酸鹽類固體廢棄物。煤矸石具有自燃、淋溶、穩(wěn)定性差的的屬性,對環(huán)境帶來了污染,以煤矸石為原料制備凈水石,可以達到以廢治廢的目的。利用熱活化煤矸石進行改性,制備出吸附性能優(yōu)良的吸附劑作為負載復合菌群的載體,采用先吸附,再用戊二醛交聯(lián)固定的復合固定化技術,制備生物負載凈水石,用于對黑龍江科技大學生活污水的處理。運用XRD、紅外光譜、SEM、COD等分析檢測手段,對載體的制備、生物負載、生活污水的凈化效果等過程進行分析。試驗結果表明,在800℃條件下熱活化的煤矸石,負載微生物菌群制得的凈水石,COD的去除率為90.42%。重金屬離子Zn~(2+)的去除率為96.60%;罨肥撦d復合菌群對Zn~(2+)的等溫吸附更符合Freundlich模型。
[Abstract]:Coal gangue is a kind of silicate solid waste with kaolinite as its main component. Coal gangue has the properties of spontaneous combustion, leaching and poor stability, which brings pollution to the environment. Using coal gangue as raw material to prepare purified water stone can achieve the purpose of waste treatment. The adsorbents with excellent adsorption properties were prepared by using thermally activated coal gangue as the carrier of the loaded complex flora. The bio-loaded water-purifying stone was prepared by using the composite immobilization technology of adsorption first and then glutaraldehyde crosslinking and immobilized. Used for treatment of domestic sewage in Heilongjiang University of Science and Technology. The preparation of carrier, biological load and purification efficiency of domestic sewage were analyzed by means of XRD, infrared spectrum and SEMN COD. The results showed that the removal rate of COD of purified water stone was 90.42 2 when coal gangue was thermally activated at 800 鈩,
本文編號:1861995
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