From wastes to functions: A paper mill sludge-based calcium-containing porous biochar adsorbent for phosphorus removal

2021 ◽  
Vol 593 ◽  
pp. 434-446
Author(s):  
Zhijuan Wang ◽  
Rongrong Miao ◽  
Ping Ning ◽  
Liang He ◽  
Qingqing Guan
Author(s):  
Zhiyong Xu ◽  
Yunqin Lin ◽  
Yuejin Lin ◽  
De Yang ◽  
Haomin Zheng

Energy ◽  
2022 ◽  
Vol 239 ◽  
pp. 121925
Author(s):  
Zhongzhe Liu ◽  
Matthew Hughes ◽  
Yiran Tong ◽  
Jizhi Zhou ◽  
William Kreutter ◽  
...  

1982 ◽  
Vol 108 (1) ◽  
pp. 1-15
Author(s):  
Orlando B. Andersland ◽  
Abdul-Amir W.N. Al-Khafaji ◽  
Richard K. Lowe
Keyword(s):  

2014 ◽  
Vol 40 (1) ◽  
pp. 33-40
Author(s):  
Nurdan Aycan ◽  
Nurdan Gamze Turan

Abstract The effects of different volumetric ratios of bulking agents to pulp/paper-mill sludge on composting were studied. Rice husk and corncob were used as bulking agents. Volumetric ratios of bulking agents to pulp/paper-mill sludge were used as 10:100 and 25:100. To monitor the evolution of the composting systems, routine parameters such as temperature, moisture, pH, total N, NH4 +-N, NO3 --N, total C, and C/N ratio were analyzed. The results indicated that the agro-based materials significantly affected compost maturity parameters. Moreover, the quality of the product obtained in the composting process treated with the agro-based materials achieved satisfactory stabilization and sanitation for application to land.


2014 ◽  
Vol 955-959 ◽  
pp. 711-715 ◽  
Author(s):  
Li Li Qian ◽  
Shu Zhong Wang ◽  
Jie Zhang

Paper industry produces large amounts of sludge with about 65wt% moisture content. Due to its complex composition, the charge of traditional disposal method is high and easy to bring about secondary pollution. In this paper, the influences of temperature, oxidation coefficient and residence time on the performance of supercritical water oxidation (SCWO) of paper mill sludge were investigated. The results show that SCWO can almost completely eliminate organics in sludge and obtain transparent liquid products meeting relative national standards at 550°C, 5min with an oxidation coefficient of 3.0. However, during this process, TN changes to NH3-N, so NH3-N in liquid products increases with operation parameters, indicating the recalcitrant nature of NH3-N, and which needs further treatment.


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