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Publications
Peer-reviewed Journal Article:
Peer-reviewed Journal Article:
(6) (In Preparation) Das, N.; Das, T.; Kühlewindt, S.; Alamin, M.; Rahman, S.; Zuthi, M. F. R.; Islam, M. R.; Pal. S. K.; Bari, Q.H.; Kraft, E. (2024) Assessment of On-Board Plastic Waste Generation: A Comparative Analysis of the contribution of local ships at Chittagong and Mongla Port to Marine Litter in the Bay of Bengal
(5) (In Finalization) Das, N.; Das, T.; Zuthi, M. F. R.; Pal, S. K.; Kraft, E.; Haupt, T.; Kuehlewindt, S. (2024) A Brief Review on Plastic Pollution in Marine Environment and Their Methods of Identification
(4) (Under Review) Acharya, S.; Babel, M. S.; Hasan, F.; Mullick, M.R.A.; Akash, P.B.; Das, N. (2024) Performance Assessment of a Public Water Supply Provider: A Case Study from a Densely Populated City in Bangladesh
(3) Akash, P.B.; Chakraborty, P.; Das, N.; Mullick, M.R.A. (2023) Assessments of Carbon Footprint of Potable Water Production: A Case from Bangladesh. Green Carbon. Publisher: Elsevier DOI: https://doi.org/10.1016/j.greenca.2024.06.006
(2) Das, N.; Mullick, M. R. A. (2022) Assessment of the hydraulic geometry of the Upper Meghna River in Bangladesh. Journal of Engineering Science. Publisher: KUET. DOI: https://doi.org/10.3329/jes.v13i2.63721
(1) Mullick, M. R. A., Das, N. (2020) Estimation of the spatial and temporal water footprint of rice production in Bangladesh. Sustainable Production and Consumption. Publisher: Elsevier. https://doi.org/10.1016/j.spc.2020.12.002; Received The Best Research Publication Award 2020 (For the Faculty of Civil Engineering)
Conference Paper:
Conference Paper:
(8) (In Preparation) Khan, F.; Biastoch. G.; Das, N.; Haupt, T. (2025). Assessing the Biodegradability of Jute and the Role of Biodegradation in Life Cycle Assessment for Evaluating Environmental Impacts of Plastics and Jute. 9th International Conference on Sustainable Solutions for Waste Management in Developing Countries (WasteSafe)
(7) (In Preparation) Das, N.; Bhowmik, A.; Mullick, M.R.A. (2025). Exploring the Carbon Footprint of Electricity Generation from Fossil Fuels and Renewable Energy: A Case Study of a City in Bangladesh. 9th International Conference on Sustainable Solutions for Waste Management in Developing Countries (WasteSafe)
(6) (Accepted) Das, T.; Das, N.; Zuthi, M. F. R.; Pal. S. K.; Kühlewindt, S.; Kraft, E.; Alamin, M.; Rahman, S. (2024). Plastic Waste Management of Local Ships in Chattogram Port: Insights from a Questionnaire Survey. 7th International Conference on Advances in Civil Engineering (ICACE)
(5) (Accepted) Rahman, S.; Islam, M. R.; Alamin, M.; Kühlewindt, S.; Kraft, E.; Bari, Q. H.; Das, N.; Das, T. (2024). Impact of Plastic Polymer on Biota And Aquatic Life From Ship-Generated Waste at Mongla Port. (ICACE)
(4) (Accepted) Alamin, M.; Islam, M. R.; Rahman, S.; Kühlewindt, S.; Kraft, E.; Bari, Q. H.; Das, N.; Das, T. (2024). Identification and Seasonal Fluctuation of Generated Plastic Waste from Local Ships at Mongla Port. (ICACE)
(3) Chowdhury, P.; Roy, A.; Das, N.; Mullick, M. R. A. (2024). Assessment of Agricultural Water and Environmental Flow Demand of Bangladesh. 7th International Conference on Civil Engineering for Sustainable Development (ICCESD)
(2) Das, N.; Das, T.; Pal. S. K.; Zuthi, M. F. R.; Kraft, E.; Haupt, T.; Kuehlewindt, S. (2023) Assessing Plastic Waste in Marine Environment using Foreign Ships from Chattogram Port. 4th International Conference on Planning, Architecture & Civil Engineering (ICPACE) Presenter: Niloy Das
(1) Bhowmik, A.; Chakraborty. P.; Das, N. (2023) Analyzing the Physical Parameters of Supplied Water of CWASA: Before and After Treatment Scenario. 7th International Conference on Natural Science & Technology (ICNST)
Projects
Research Area: Environmental Monitoring and Management
P1. Sustainable Capacity building to reduce Irreversible Pollution by Plastics (SCIP Plastics Project)
Objective:
To develop a master plan for marine debris reduction at Harbours
Material flow analysis of goods at ports (Mongla and Chattogram)
Waste composition analysis at transshipment and repackaging units
Estimation of imminent entry of marine plastic debris at ports
Derivation of avoidance potentials for plastics at ports
To take action against immediate marine pollution
Applicability study for the implementation of the master plan
Papers:
(In preparation) Assessment of On-Board Plastic Waste Generation: A Comparative Analysis of the contribution of local ships at Chittagong and Mongla Port to Marine Litter in the Bay of Bengal
(In Finalization) A Brief Review on Plastic Pollution in Marine Environment and Their Methods of Identification
Plastic Waste Management of Local Ships in Chattogram Port: Insights from a Questionnaire Survey
Assessing Plastic Waste in Marine Environment using Foreign Ships from Chattogram Port
Identification and Seasonal Fluctuation of Generated Plastic Waste from Local Ships at Mongla Port
Impact of Plastic Polymer on Biota And Aquatic Life From Ship-Generated Waste at Mongla Port
P2. Development of a sustainability index using water-energy-food nexus approach coupled with water quality and carbon footprint: a case study in the Karnafuli River
Objective: To develop a suitable water-energy-food-carbon index coupled with water quality (WEFCQ) that reflects the degree of environmental sustainability at a watershed level.
Papers:
(In preparation) Exploring the Carbon Footprint of Electricity Generation from Fossil Fuels and Renewable Energy: A Case Study of a City in Bangladesh
Assessments of Carbon Footprint of Potable Water Production: A Case from Bangladesh
Research Area: Water Resources Management
P3. Spatial and temporal explicit assessment of Water footprint (WF) of rice in Bangladesh
P3. Spatial and temporal explicit assessment of Water footprint (WF) of rice in Bangladesh
Objective - To estimate WF and its components, i.e., WFgreen, WFblue and WFgrey pointing to the water appropriation in terms of quality and quantity of different varieties of rice crops in Bangladesh as well as to identify auto-correlation of spatial pattern and controlling factors of WF to ensure food security with better water management plan.
Abstract - Bangladesh, being the fourth largest rice producer in the world, is incessantly using its water resources through increasing irrigation intensity to sustain the rice production within its limited land utility. Water footprint (WF) is an important and efficient means to assess water appropriation in terms of quality and quantity. This is an unprecedented study in Bangladesh aiming to estimate the green, blue and grey water footprint of all three rice types grown in Bangladesh, namely Aus, Aman and Boro for 1997, 2007 and 2017 with a spatial explicit. The CROPWAT 8.0 tool was used to estimate crop water use (CWU) to derive further green water footprint (WFgreen) and blue water footprint (WFblue) of rice. The grey water footprint (WFgrey) was calculated based on the application of the prevalence of fertilizers used in rice. The estimated spatial inter-annual average of WF was 9370m3/ton, 7845 m3/ton and 4608 m3/ton for Aus, 5245 m3/ton, 4551 m3/ton and 3528 m3/ton for Aman and 4565 m3/ton, 3341 m3/ton and 3150 m3/ton for Boro in 1997, 2007 and 2017 respectively. WF followed a decreasing trend for all the varieties due to the continuous increase in yield. The estimated spatial average of WF of all three varieties increased due to increase in rice production. This gradual increase, if persists, will affect future water availability. Spatial variation of WF, spatial autocorrelation of WF using Local Indicators of Spatial Association (LISA) method, seasonal variation among WF and its components and temporal trend of average inter-annual change of WF were assessed and presented elaborately. LISA analysis explores the existence of spatial clustering of high water consumption zones for an individual variety of rice. A temporal trend with inter-annual average WF had been observed with inconsistency in few districts. The analysis underscores the impact of irrigation water option with a necessary switch to offset stress. Results from such twofold analyses of temporal variation with the existence of the spatial pattern of WF and its elements could be utilized through proper interventions to ensure food security.
Papers:
Abstract - Bangladesh, being the fourth largest rice producer in the world, is incessantly using its water resources through increasing irrigation intensity to sustain the rice production within its limited land utility. Water footprint (WF) is an important and efficient means to assess water appropriation in terms of quality and quantity. This is an unprecedented study in Bangladesh aiming to estimate the green, blue and grey water footprint of all three rice types grown in Bangladesh, namely Aus, Aman and Boro for 1997, 2007 and 2017 with a spatial explicit. The CROPWAT 8.0 tool was used to estimate crop water use (CWU) to derive further green water footprint (WFgreen) and blue water footprint (WFblue) of rice. The grey water footprint (WFgrey) was calculated based on the application of the prevalence of fertilizers used in rice. The estimated spatial inter-annual average of WF was 9370m3/ton, 7845 m3/ton and 4608 m3/ton for Aus, 5245 m3/ton, 4551 m3/ton and 3528 m3/ton for Aman and 4565 m3/ton, 3341 m3/ton and 3150 m3/ton for Boro in 1997, 2007 and 2017 respectively. WF followed a decreasing trend for all the varieties due to the continuous increase in yield. The estimated spatial average of WF of all three varieties increased due to increase in rice production. This gradual increase, if persists, will affect future water availability. Spatial variation of WF, spatial autocorrelation of WF using Local Indicators of Spatial Association (LISA) method, seasonal variation among WF and its components and temporal trend of average inter-annual change of WF were assessed and presented elaborately. LISA analysis explores the existence of spatial clustering of high water consumption zones for an individual variety of rice. A temporal trend with inter-annual average WF had been observed with inconsistency in few districts. The analysis underscores the impact of irrigation water option with a necessary switch to offset stress. Results from such twofold analyses of temporal variation with the existence of the spatial pattern of WF and its elements could be utilized through proper interventions to ensure food security.
Papers:
- Estimation of the spatial and temporal water footprint of rice production in Bangladesh
Research Area: Watershed Hydrology
P4. Modeling climate change impacts to assess hydraulic geometry of the Upper Meghna River in Bangladesh
Objective- To assess the hydraulic geometry (water surface profile) by modeling the impacts of climate changes (rainfall variation) in HEC-RAS, and observe the highest water surface elevation for the return period of 2.33 years, 5 years, and 20 years
Abstract- The Meghna is one of the prime rivers in Bangladesh. Frequent changes in flow and water level are a regular phenomenon due to the high seasonal rainfall variation. Such variations are exaggerated with climate change-induced effects. Hence, it is crucial to figure out how climate change will affect the Meghna river's hydraulic properties due to the increasing trend of mean monthly temperature and mean monthly rainfall in the monsoon season. This study uses HEC-RAS model to understand the water level behavior of a specific 120 km long reach of the Meghna river. A model was set up to run unsteady flow analyses for the years 2018, 2019, and 2020. The model has been calibrated for the water level of Bhairavbazar station. The result matches well with the actual observation after calibration and validation. The study finds maximum water level during August, which mostly correlates with the high rainfall during this month of the monsoon season. The model has also been used to run a steady flow analysis for the return period of 2.33 years, 5 years, and 20 years. The result is useful for the sustainable design of bridges and other hydraulic structures.
Papers:
Assessment of the hydraulic geometry of the Upper Meghna River in Bangladesh
P5. A study on sediment transport in the Karnafuli River (Undergraduate thesis)
P5. A study on sediment transport in the Karnafuli River (Undergraduate thesis)
Objective- To find out invert elevation, sediment concentration and cumulative mass at each control volume in a 34 km selected portion of a tidal river to check the aggradation-degradation zone by incorporating sediment and geometry data via Global mapper, Autocad Civil 3D, and Cad-earth into HEC RAS and conducting hydrodynamic assessments.
Abstract- Physical sustainability of river environment depends largely on the volume of sediment coming from the upstream. The goal of sediment transport in the Karnafuli river through canals is to find out the sediment mass outcome which is carried by the canals to rivers .
Though Karnafuli is one of the prime rivers of Bangladesh, there is a knowledge gap about how much sediment transports through canals of the Karnafuli River for the decision makers to implement any water resource project in those canals. Time series discharge, water level data and the transported sediment data are used as boundary condition. Different hydrodynamic assessment like variation of velocity, sediment transport and bed level changes have also been studied. It helps us to determine the rate of aggradation, degradation throughout the reach.
The map has been collected from CDA (Chittagong Development Authority) and other essential data are collected from different websites. As a mathematical model, HEC RAS is used for siltation study of river and hydrological and morphological changes at river. Meyer-Peter-Muller formula is used to analyze characteristics of sediment transport. Total sediment erosion and deposition is obtained from hydrodynamic variables for different cross sections between the study reach. At River station 32850, channel invert elevation changes from 0.0125m to 0.481 m and cumulative mass (sediment mass entering and leaving) increases for 750m channel distance indicating the river station as an aggrading type. Successful calibration and verification can be used to make future prediction and decision making of various projects contingent to the study area.
Abstract- Physical sustainability of river environment depends largely on the volume of sediment coming from the upstream. The goal of sediment transport in the Karnafuli river through canals is to find out the sediment mass outcome which is carried by the canals to rivers .
Though Karnafuli is one of the prime rivers of Bangladesh, there is a knowledge gap about how much sediment transports through canals of the Karnafuli River for the decision makers to implement any water resource project in those canals. Time series discharge, water level data and the transported sediment data are used as boundary condition. Different hydrodynamic assessment like variation of velocity, sediment transport and bed level changes have also been studied. It helps us to determine the rate of aggradation, degradation throughout the reach.
The map has been collected from CDA (Chittagong Development Authority) and other essential data are collected from different websites. As a mathematical model, HEC RAS is used for siltation study of river and hydrological and morphological changes at river. Meyer-Peter-Muller formula is used to analyze characteristics of sediment transport. Total sediment erosion and deposition is obtained from hydrodynamic variables for different cross sections between the study reach. At River station 32850, channel invert elevation changes from 0.0125m to 0.481 m and cumulative mass (sediment mass entering and leaving) increases for 750m channel distance indicating the river station as an aggrading type. Successful calibration and verification can be used to make future prediction and decision making of various projects contingent to the study area.
Research Area: Water Infrastracture
P6. Performance Evaluation of Chittagong Water Supply and Sewerage Authority (CWASA) – a public water supply provider of Bangladesh
Objective: To evaluate the effectiveness and performance of CWASA using the indicators recommended in the IWA manual of best practices for water supply services, and identify the customer satisfaction level through a questionnaire survey.
Paper:
(Under Review) Performance Assessment of a Public Water Supply Provider: A Case Study from a Densely Populated City in Bangladesh
Analyzing the Physical Parameters of Supplied Water of CWASA: Before and After Treatment Scenario
P7. Drainage system design for the Naf Tourism Park (Part of a National development project) link
Objective: To calculate anticipated surface water flow changes for the proposed site design in the hilly area, and design drainage system considering economy and sustainability.
Tasks:
Quantification of storm contribution area through watershed delineation in ArcGIS
Anticipated surface water flow changes calculation for the proposed stations located in the hilly area
Hydraulic design of the drainage by choosing suitable design storm based on risk
Drainage System Design of NAF_Niloy.pptxResearch Area: Climate Change Impacts
P8. Understanding geomorphological change and sea-level rise to evaluate shoreline change using satellite images and statistical methods (Ongoing project)
Objective- Assessing long and short term shoreline change dynamics (retreat/accretion) and analyzing the controlling factors to understand shoreline responses to distinct geodynamic behavior and local variation (sea level rise)
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