1. Singh, N.K. and A.A. Kazmi, 2018. Performance and cost analysis of decentralized wastewater treatment plants in Northern India: Case study. J. Water Resour. Plann. Manage., Vol. 144, No. 3. 10.1061/(ASCE)WR.1943-5452.0000886.
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2. Singh, N.K., R.P. Singh and A.A. Kazmi, 2017. Environmental impact assessment of a package type IFAS reactor during construction and operational phases: A life cycle approach. Water Sci. Technol., 75: 2246-2256.
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3. Singh, N.K., A. Bhatia and A.A. Kazmi, 2017. Effect of intermittent aeration strategies on treatment performance and microbial community of an IFAS reactor treating municipal waste water. Environ. Technol., 38: 2866-2876.
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4. Bhatia, A., N.K. Singh, T. Bhando, R. Pathania and A.A. Kazmi, 2017. Effect of intermittent aeration on microbial diversity in an intermittently aerated IFAS reactor treating municipal wastewater: A field study. J. Environ. Sci. Health Part A, 52: 440-448.
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5. Singh, N.K., S. Pandey, S. Singh, S. Singh and A.A. Kazmi, 2016. Post treatment of UASB effluent by using inorganic coagulants: Role of zeta potential and characterization of solid residue. J. Environ. Chem. Eng., 4: 1495-1503.
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6. Singh, N.K., J. Singh, A. Bhatia and A.A. Kazmi, 2016. A pilot-scale study on PVA gel beads based Integrated Fixed film Activated Sludge (IFAS) plant for municipal wastewater treatment. Water Sci. Technol., 73: 113-123.
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7. Singh, N.K., A.A. Kazmi and M. Starkl, 2016. Treatment performance and microbial diversity under dissolved oxygen stress conditions: Insights from a single stage IFAS reactor treating municipal wastewater. J. Taiwan Inst. Chem. Eng., 65: 197-203.
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8. Singh, N.K. and S. Pandey, 2016. Seasonal assessment of wastewater characteristics in hilly tourist place and its implication in selection and design of wastewater treatment alternatives. Nat. Environ. Pollut. Technol., 15: 673-678.
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9. Singh, N.K. and A.A. Kazmi, 2016. Techno-economic assessment of MBBRs treating municipal wastewater followed by different supplemental treatment strategies. J. Indian Water Works Assoc., 2: 89-93.
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10. Singh, N.K. and A.A. Kazmi, 2016. Environmental performance and microbial investigation of a single stage aerobic Integrated Fixed-film Activated Sludge (IFAS) reactor treating municipal wastewater. J. Environ. Chem. Eng., 4: 2225-2237.
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11. Pandey, S., N.K. Singh, A.K. Bansal, V. Arutchelvan and S. Sarkar, 2016. Alleviation of toxic hexavalent chromium using indigenous aerobic bacteria isolated from contaminated tannery industry sites. Prepar. Biochem. Biotechnol., 46: 517-523.
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12. Kumar, T., K.H. Prasad and N.K. Singh, 2016. Substrate removal kinetics and performance assessment of a vermifilter bioreactor under organic shock load conditions. Water Sci. Technol., 74: 1177-1184.
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13. Gani, K.M., J. Singh, N.K. Singh, M. Ali, V. Rose and A.A. Kazmi, 2016. Nitrogen and carbon removal efficiency of a polyvinyl alcohol gel based moving bed biofilm reactor system. Water Sci. Technol., 73: 1511-1519.
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14. Yadav, M., N.K. Singh, U. Brighu and S. Mathur, 2015. Adsorption of F on Bio-Filter sorbent: Kinetics, equilibrium and thermodynamic study. Desalin. Water Treat., 56: 463-474.
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15. Yadav, M., N.K. Singh, R. Sinha, U. Brighu, S. Mathur and A.B. Gupta, 2015. Performance evaluation of community level defluoridation plants: A case study from Nagaur and Jodhpur, Rajasthan. Nat. Environ. Pollut. Technol., 14: 83-88.
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16. Singh, N.K., S. Saha and A. Pal, 2015. Solar light-induced photocatalytic degradation of methyl red in an aqueous suspension of commercial ZnO: A green approach. Desalin. Water Treat., 53: 501-514.
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17. Singh, N.K., S. Saha and A. Pal, 2015. Methyl red degradation under UV illumination and catalytic action of commercial ZnO: A parametric study. Desalin. Water Treat., 56: 1066-1076.
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18. Singh, N.K., A.A. Kazmi and M. Starkl, 2015. Environmental performance of an Integrated Fixed-film Activated Sludge (IFAS) reactor treating actual municipal wastewater during start-up phase. Water Sci. Technol., 72: 1840-1850.
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19. Singh, N.K., A.A. Kazmi and M. Starkl, 2015. A review on full-scale decentralized wastewater treatment systems: Techno-economical approach. Water Sci. Technol., 71: 468-478.
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20. Saini, G., S. Pant, T. Alam, A.A. Kazmi, N. Sharma and N.K. Singh, 2015. Removal efficiency of endocrine disrupting chemicals through chemical coagulation using two different coagulants: AlCl₃ and Al₂(SO₄)₃. J. Applicable Chem., 4: 136-143.
21. Banyal, P., N. Singh and A.A. Kazmi, 2015. Assessment of decentralized wastewater treatment systems for sanitation of small communities using a qualitative approach methodology: A case study from Northern India. Int. J. Eng. Adv. Technol., 4: 32-39.
22. Ali, M., N.K. Singh, A. Bhatia, S. Singh, A. Khursheed and A.A. Kazmi, 2014. Sulfide production control in UASB reactor by addition of iron salt. J. Environ. Eng., Vol. 141, No. 6. 10.1061/(ASCE)EE.1943-7870.0000911.
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