Changes of organic phosphorus in river waters in northern Bangladesh

Authors

  • MJ Islam Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinjapur-5200
  • MS Rahman Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinjapur-5200
  • Rubeca Fancy Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinjapur-5200
  • AKMS Rahman Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinjapur-5200
  • M Shamsuzzoha Department of Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinjapur-5200
  • MAH Siddiqi Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinjapur-5200

DOI:

https://doi.org/10.3329/ijarit.v5i2.26267

Keywords:

Organic Phosphorus, Decomposition, River Water

Abstract

The variability in phosphorus concentrations and the decomposition rates of organic phosphorus were measured in five selected rivers through four surveys in July and November of 2012, and February and May of 2013. After collection the water samples were incubated for 20 days in a dark incubator and the change of forms of phosphorus such as particulate organic phosphorus (POP), dissolved organic phosphorus (DOP) and dissolved inorganic phosphorus (DIP) were analyzed. By fitting the changes to two types of models, the decomposition rates of organic phosphorus were determined. The mean total organic phosphorus (TOP) decomposition rate coefficients in the studied rivers was 0.039 day-1. The average POP decomposition rate coefficient (POP?DOP?DIP model) was 0.038 day-1 while the mean DOP decomposition rate coefficient was 0.251 day-1. The decomposition rate coefficients measured in this study might be applicable for modeling of river water quality.

Int. J. Agril. Res. Innov. & Tech. 5 (2): 31-36, December, 2015

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Author Biography

MJ Islam, Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinjapur-5200



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Published

2016-01-04

How to Cite

Islam, M., Rahman, M., Fancy, R., Rahman, A., Shamsuzzoha, M., & Siddiqi, M. (2016). Changes of organic phosphorus in river waters in northern Bangladesh. International Journal of Agricultural Research, Innovation and Technology, 5(2), 31–36. https://doi.org/10.3329/ijarit.v5i2.26267

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Articles