Nature Environment and Pollution Technology

Open Access Open Access  Restricted Access Subscription Access

Effects of Peat and Mushroom Residues on Removing Ammonia-Nitrogen and Total Phosphorus in Wastewater


Affiliations
1 School of Forestry, Beijing Forestry University, Beijing-100083, China
2 Jiuquan Vocational and Technical College, Jiuquan-735000, Gansu Province, China
3 Beijing Sen Miao Tian Cheng Environmental Protection Technology Co. Ltd., Beijing-100081, China
 

Peat and mushroom residues were selected for adsorption isotherm and adsorption kinetics experiments and to comparatively discuss the effects of removing ammonia-nitrogen and the total phosphorus in wastewater. The results showed that the peat and mushroom residues for removing ammonianitrogen and the total phosphorus followed the Freundlich and Langmuir equations of the adsorption isotherm. By using a fitting equation, we obtained the static adsorption quantities of ammonia-nitrogen, which were 2.3679 mg/g and 2.1643 mg/g, and the static adsorption quantities of total phosphorus were 1.4363 mg/g and 1.3758 mg/g. A first-order kinetics equation was used to fit the reaction process of the two-substrate adsorption of ammonia-nitrogen and the total phosphorus. The correlation coefficients were all desirably above 0.990. Furthermore, the adsorption rates of ammonia-nitrogen were 0.0088 g/(mg·min) and 0.0084 g/(mg·min), and the adsorption rates of the total phosphorus were 0.001 g/(mg·min) and 0.0006 g/(mg·min). In a simulation of the soil percolation system, a volume ratio of 10% peat and 10% mushroom residues with different sizes of 0.5, 2 and 4 mm were mixed with the soil in different treatments (T1-T6), and the control group was the soil (CK). The concentration of ammonia-nitrogen in the wastewater was 54.45-78.96 mg/L, and the hydraulic loading was 0.08 m3/ (m2·d). The performance of seven types of experimental devices for removing ammonia-nitrogen in the wastewater was T2 > T3 > T1 > T6 > T5 > T4 > CK. The average concentration of ammonia-nitrogen in the effluent water was 65.58 mg/L, and the removal rate of ammonia-nitrogen and the total phosphorus reached 88.04-95.32% and 89.23-97.08%, respectively, which satisfied the additional minimum UWTD treatment performance for a discharge to a sensitive area.

Keywords

Peat and Mushroom, Residues, Ammonia-Nitrogen, Total Phosphorus, Wastewater.
User
Notifications
Font Size


  • Bai Xuefeng, Wang Guochen and LiuYang, et al. 2004. Effect of improving dust soil with turf on soil water situation. Liaoning Agricultural Sciences, 4: 51-52.

  • Cui Lihua, Zhu Xizhen, Luo Shiming, et al. 2003. Purification efficiency of vertical-flow wetland system constructed by cinder and turf substrate on municipal wastewater. Chinese Journal of Applied Ecology, 14(4): 597-600.

  • Drizo, A., Frost, C. A. and Grace J. et al. 1999. Physico-chemical screening of phosphate-removing substrates for use in constructed wetland systems. Water Research, 33(17): 3595-3602.

  • J.Beltrán Heredia and J.Sánchez Martín. 2009. Municipal wastewater treatment by modified tannin flocculant agent. Desalination, 249: 353-358.

  • Kostura, B., Kulveitová H. and Le ko J. 2005. Blast furnace slags as sorbents of phosphate from water solutions. Water Research, 39(9): 1795-1802.

  • Liu Yong 2004. Study on Performance of Vermiculite on Sewage Treatment. Central South University of Forestry and Technology.

  • Ouyang Zimin 2012. Influence of activated carbon on the COD removing efficiency of heavy metal wastewater in the SBR reactor. Journal of Anhui Technical College of Water Resources and Hydroelectric Power, 12(2).

  • Qiao Jie and Ren Xiuyan 2012. Effects of peat on organic carbon, total nitrogen and soil microbial biomass in greenhouse soil. Southwest China Journal of Agricultural Sciences, 25(05): 17771780.

  • Qin Ling, Kang Wenhuai, Li Jiarui and Wei Qinping 2009. Nitrogen, phoshorus and potassium adsorption characteristics of peat, sandy soil, loamy soil and their mixture. Journal of Central South University of Forestry & Technology, 29(1): 20-24.

  • Sakadevan, K. and Bavor H. J. 1998. Phosphate adsorption characteristics of soils, slags and zeolite to be used as substrates in constructed wetland systems. Water Research, 32(2): 393399.

  • Shi Lianhui, Zhang Zhiguo and Liu Dengmin, et al. 2008. Comparison of physiochemical properties between spent mushroom compost and peat substrate and adjustment. Transactions of the Chinese Society of Agricultural Engineering, 24(4).

  • Siegrist, R. L. 1987. Soil clogging during subsurface wastewater infiltration as affected by effluent composition and loading rate. Journal of Environmental Quality, 16(2): 181-187.

  • Su Qingfeng 2007. Study on filtration through single or double beds to remove NH4 +-N from drinking water. Master Dissertation of Harbin Institute of Technology, Harbin.

  • Wang Shuhui and Gao Jiahe 2006. The effect of different peat levels on soil physical and chemical traits and tobacco leaf yield and quality. Chinese Agricultural Science Bulletin, 22(12): 377-379.

  • Wang Yuanyuan and Zhang Yanlin 2009. Effects of the depth and variety of substrates used in constructed wetlands on nitrogen and phosphorus removal. Journal of Agro-Environment Science, 28(3): 581-586.

  • Yan Ye 2008. Study on performance of constructed wetland for rural sewage treatment in arid area. Beijing University of Chemical Technology.

  • Ye Jianfeng 2007. Research on removal mechanism for pollutant in vertical-flow constructed wetland. Doctor Dissertation of Tongji University, Shanghai.

  • Yu Junbao, Hou Xiaokai, Han Guangxuan, et al. 2013. Removal efficiency of multi-medium constructed wetlands on nitrogen and phosphorus in domestic sewage. Wetland Science, 11(2): 233-238.

  • Zacar M. 2003. Equilibrium and kinetic modelling of adsorption of phosphorus on calcined alunite. Adsorption, 9(2): 125-132.

  • Zhang Jian, Huang Xia and Shi Hanchang 2004. Treatment of domestic wastewater by subsurface infiltration system with addition of turfy soil. China Water & Wastewater, 20(6): 41-43.

  • Zou, J., Chen, X., Zhang, Y.M., Zhang, Y.C. And Zhou, J.R., 2010.

  • Impact of Materials in Multi-Media-Soil-Layer (MSL) System on Sewage Treatment. Journal of Ecology and Rural Environment, 26(1): 14-18.


Abstract Views: 106

PDF Views: 0




  • Effects of Peat and Mushroom Residues on Removing Ammonia-Nitrogen and Total Phosphorus in Wastewater

Abstract Views: 106  |  PDF Views: 0

Authors

Na Qi
School of Forestry, Beijing Forestry University, Beijing-100083, China
Xiangyang Sun
School of Forestry, Beijing Forestry University, Beijing-100083, China
Xinhui Qin
Jiuquan Vocational and Technical College, Jiuquan-735000, Gansu Province, China
Zhou Yu
Beijing Sen Miao Tian Cheng Environmental Protection Technology Co. Ltd., Beijing-100081, China

Abstract


Peat and mushroom residues were selected for adsorption isotherm and adsorption kinetics experiments and to comparatively discuss the effects of removing ammonia-nitrogen and the total phosphorus in wastewater. The results showed that the peat and mushroom residues for removing ammonianitrogen and the total phosphorus followed the Freundlich and Langmuir equations of the adsorption isotherm. By using a fitting equation, we obtained the static adsorption quantities of ammonia-nitrogen, which were 2.3679 mg/g and 2.1643 mg/g, and the static adsorption quantities of total phosphorus were 1.4363 mg/g and 1.3758 mg/g. A first-order kinetics equation was used to fit the reaction process of the two-substrate adsorption of ammonia-nitrogen and the total phosphorus. The correlation coefficients were all desirably above 0.990. Furthermore, the adsorption rates of ammonia-nitrogen were 0.0088 g/(mg·min) and 0.0084 g/(mg·min), and the adsorption rates of the total phosphorus were 0.001 g/(mg·min) and 0.0006 g/(mg·min). In a simulation of the soil percolation system, a volume ratio of 10% peat and 10% mushroom residues with different sizes of 0.5, 2 and 4 mm were mixed with the soil in different treatments (T1-T6), and the control group was the soil (CK). The concentration of ammonia-nitrogen in the wastewater was 54.45-78.96 mg/L, and the hydraulic loading was 0.08 m3/ (m2·d). The performance of seven types of experimental devices for removing ammonia-nitrogen in the wastewater was T2 > T3 > T1 > T6 > T5 > T4 > CK. The average concentration of ammonia-nitrogen in the effluent water was 65.58 mg/L, and the removal rate of ammonia-nitrogen and the total phosphorus reached 88.04-95.32% and 89.23-97.08%, respectively, which satisfied the additional minimum UWTD treatment performance for a discharge to a sensitive area.

Keywords


Peat and Mushroom, Residues, Ammonia-Nitrogen, Total Phosphorus, Wastewater.

References