Conference Presentations by Rumman Mowla Chowdhury
wastesafe, 2019
Food waste occurs at every stage of the value chain. This is the part of food which is being dis... more Food waste occurs at every stage of the value chain. This is the part of food which is being discarded or lost uneaten. This part of waste has a credible share in the municipal waste which is not common only for the developed countries but also familiar for countries like Bangladesh. Management of this extensive amount of waste has become unavoidable as this problem is affecting the city areas specially the capital city Dhaka in a comprehensive manner. Thereupon more attention is being sought to manage this issue by the policy makers, industrialists and consumers to avoid its economic, environmental and social impacts. This Study has focused predominantly on the current restaurant situation is holding on in Dhanmondi area. Structured questionnaire was designed which queried regarding the waste management practice, encouraging policy for reducing waste and their future contemplation in waste management. The study used a mixed-method approach, relying on document analysis and interviews with relevant persons in the restaurant industry. The study begins by exploring issues in the restaurant food system that result in the current levels of food waste. It then identified the current context of restaurants in Dhanmondi area. This study found that substantial regulatory changes are required to achieve substantial reductions in restaurant food waste. Along with the management practices few questions were related to the average number of attendants, the amount of produced waste, the type of waste, the expenditure part for the management practice. Besides questioning there was an attempt taken to prepare compost from the restaurant waste. To do that waste was being carried towards a barrel compost. After waiting for two months the compost fertilizer was ready to use and the amount of compost fertilizer that came out from 3.9 Kg restaurants waste was 326 g. After separating non-biodegradable material like bone, oily tissue and bottle caps, the amount of compost reduced to 180 g. The overall cost was within 3000 BDT (35 US dollar) for preparing the composting barrel.
Journal of Water Resources and Pollution Studies Volume1 Issue 3, 2016
Groundwater (GW) is the main source of irrigation for increasing crop production as well as
for c... more Groundwater (GW) is the main source of irrigation for increasing crop production as well as
for climate change adaptation owing to sustainable agricultural intensification in the
northwest region of Bangladesh. In this study, successive depletion of groundwater level
(GWL) with expansion of GW irrigation in Barind Tract has been discussed in the
background of Mohadebpur Upazila of Naogaon District and is conducted to assess the
nature of hydrograph which reflects the history of the behaviors of the parameters of the
shallow aquifers on the basis of lithology and other parameters concerning GWL depletion. It
has been observed that GW development, sources of recharge and properties of upper finer
materials influence the GWL depletion phenomenon. Hydrograph analysis, GWL mapping,
GW depletion rate calculation are done from GWL observation well data of Bangladesh
Water Development Board (BWDB). For scaling adjustment both groundwater table (GWT)
and lithology are plotted from the ground surface throughout the study and analysed for the
understanding of the geology surrounding the observation wells. From our analysis it has
been found that out of seven observation wells in the study area some of them show the
declining trend of GWL and excessive withdrawal of GW exceeds the potential recharge for
most of the observation wells. Crop diversification, artificial recharging, increasing
dependency on surface water, increasing irrigation efficiency, rainwater harvesting etc. can
be option for the area. Based on the simulation and GWL fluctuation analysis, availability of
GW resource has been assessed for the design year. In selecting design year, most weight has
2 Page 1-19 © MAT Journals 2016. All Rights Reserved
Journal of Water Resources and Pollution Studies
Volume1 Issue 3
been considered for 80% dependable of annual rainfall, because this is considered most
generally significant for domestic requirement considerations. The design year (2008 in this
study) is selected based on the return period analysis of rainfall from the precipitation
records for a period of 30 years spanning over 1980 to 2009 obtained from 18 rain gauge
stations located in and around the model area. However, development of numerical GW
modelling as well as simulation of GW flow has been performed in an integrated MIKE-11
and MIKE-SHE platform. From this assessment it is found that potential recharge for the
study area is 444 mm
5th International Conference on Civil Engineering for Sustainable Development (ICCESD 2020), 7~9 February 2020, KUET, Khulna, Bangladesh
The present investigation is aimed at understanding the water quality parameters and the developm... more The present investigation is aimed at understanding the water quality parameters and the development of a water quality index (WQI) to assess the quality of the Shitalakshya River near Haripur power station, Narayanganj for five different years (2013-2018) considering monsoon, pre-monsoon, post monsoon seasonal variations. Water quality index (WQI) is a valuable and unique rating to depict the overall water quality status in a single term that is helpful for the selection of appropriate treatment technique to meet the concerned issues. In this study, three different methods were used to evaluate the WQI named as; Weighted Arithmetic Index Method, Canadian Council of Ministers of the Environment Water Quality Index Method and National Sanitation Foundation Method. Essential parameters i.e. pH, total dissolved solids, dissolves oxygen, biochemical oxygen demand, electrical conductivity, chloride, turbidity, color, Silica, Iron, Phosphate were considered for calculating the WQI. According to Weighted Arithmetic Index Method the WQI value varied from 80 to 286 for the last five years. From the National Sanitation Foundation Method the WQI value was found within 36 to 56 for the study duration. The WQI value was varied from 3 to 16 according to Canadian Council of Ministers of the Environment Water Quality Index Method. Based on WQI values, the Shitalakhya river water was being classified as poor water for the above mentioned different years. Furthermore,the water quality were poor for different seasons as well.Among the different parameters, mostly turbidity, electrical conductivity, TSS, Iron were the parameters which caused the situation worst.Moreover, it was found there were no significant differences among the various methods for assessing WQI.
Papers by Rumman Mowla Chowdhury
Restoration of any river is indispensable to conserve and restore the surrounding environment. Ri... more Restoration of any river is indispensable to conserve and restore the surrounding environment. River restoration through dredging is one of the primary solutions for rehabilitation of rivers those get silted up causing adverse impacts on the state of the river channel and its morphology. Restoration of old channel now dead but once a flowing channel is a very complex tasks and need cautious attention regarding selection of its alignment, reexcavation volume and sustainability of dredge channel. Uses of modeling tools are very crucial for understanding the scenarios on future performance after rehabilitation and its sustainability. An in-depth study has been performed to restore the Old Madhumati River, which is situated in the southwest region of Bangladesh. Once it was a free flowing river now became silted up causing serious environmental degradation in the surrounding area. Under this obstinately changing morphological condition of Old Madhumati river, the study included review, ...
Assessment of Water Quality Index of Water Bodies Along Dhaka-Mawa-Bhanga Road
The objective of this paper is to find out water quality index (WQI) of several water bodies to s... more The objective of this paper is to find out water quality index (WQI) of several water bodies to sum up huge amounts of water quality data into understandable language. Water quality parameters of 6 different water stations along the Dhaka-Mawa road and 6 different water stations along the Mawa-Bhanga road were collected to determine water quality index. Six most important parameters-pH, total dissolved solids (TDS), dissolves oxygen (DO), biochemical oxygen demand (BOD) and electrical conductivity (EC) were taken for the calculation of WQI. The calculation of WQI was made using weighted arithmetic index method. According to the arithmetic mean method WQI values vary between 59 to129. The values of the WQI showed that the water of the maximum stations are poor and very poor in condition, no one can be referred as good or excellent for human consumption and other uses. Physico-chemical parameters were monitored for the calculation of WQI for the pre-monsoon season. The result revealed...
International Journal of Civil Engineering and Technology
Rural populations in Bangladesh often are heavily dependent on small reservoirs for their water s... more Rural populations in Bangladesh often are heavily dependent on small reservoirs for their water supply not only for drinking and domestic purposes but also for aquaculture. This study was carried out to assess surface water quality of water bodies along the Dhaka-Mawa-Bhanga (N8) which is of 60 km in length. As all the water bodies of are expected to be productive due to the geophysical and climatic condition of the country, it will be better to ensure the perfect utilization of the existing resources. In the way to finding out the feasibility for aquaculture in the surface water the following parameters: p H , electrical conductivity, total dissolved solids, salinity, dissolved oxygen, transparency before monsoon as it is the suitable season for the beginning of breeding; were collected and analyzed. The results were compared with standard values of aquaculture prescribed by South African Water Quality Guidelines. From data analysis it was found that several water quality parameter...
Journal of Engineering Science, 2022
The present investigation is aimed at understanding the water quality parameters and the findings... more The present investigation is aimed at understanding the water quality parameters and the findings of a water quality index (WQI) to assess the characteristics of the Shitalakshya River near Haripur power station, Narayanganj for five different years (2013-2018) considering monsoon, pre-monsoon, post-monsoon seasonal variations. In this study, three different methods were used to evaluate the WQI named as; Weighted Arithmetic Index Method, Canadian Council of Ministers of the Environment (CCME) WQI Method and National Sanitation Foundation (NSF) Method. Essential parameters i.e. dissolved oxygen, pH, chloride, turbidity, color, biochemical oxygen demand, total dissolved solids, Silica, Iron, electrical conductivity, Phosphate were considered for calculating the WQI. According to Weighted Arithmetic Index Method, the WQI value varied from 80 to 286 for the last five years. From the National Sanitation Foundation Method, the WQI value was found within 36 to 56 for the study duration. T...
Evaluation of the river Padma morphological transition in the central Bangladesh using GIS and remote sensing techniques
International Journal of River Basin Management
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Conference Presentations by Rumman Mowla Chowdhury
for climate change adaptation owing to sustainable agricultural intensification in the
northwest region of Bangladesh. In this study, successive depletion of groundwater level
(GWL) with expansion of GW irrigation in Barind Tract has been discussed in the
background of Mohadebpur Upazila of Naogaon District and is conducted to assess the
nature of hydrograph which reflects the history of the behaviors of the parameters of the
shallow aquifers on the basis of lithology and other parameters concerning GWL depletion. It
has been observed that GW development, sources of recharge and properties of upper finer
materials influence the GWL depletion phenomenon. Hydrograph analysis, GWL mapping,
GW depletion rate calculation are done from GWL observation well data of Bangladesh
Water Development Board (BWDB). For scaling adjustment both groundwater table (GWT)
and lithology are plotted from the ground surface throughout the study and analysed for the
understanding of the geology surrounding the observation wells. From our analysis it has
been found that out of seven observation wells in the study area some of them show the
declining trend of GWL and excessive withdrawal of GW exceeds the potential recharge for
most of the observation wells. Crop diversification, artificial recharging, increasing
dependency on surface water, increasing irrigation efficiency, rainwater harvesting etc. can
be option for the area. Based on the simulation and GWL fluctuation analysis, availability of
GW resource has been assessed for the design year. In selecting design year, most weight has
2 Page 1-19 © MAT Journals 2016. All Rights Reserved
Journal of Water Resources and Pollution Studies
Volume1 Issue 3
been considered for 80% dependable of annual rainfall, because this is considered most
generally significant for domestic requirement considerations. The design year (2008 in this
study) is selected based on the return period analysis of rainfall from the precipitation
records for a period of 30 years spanning over 1980 to 2009 obtained from 18 rain gauge
stations located in and around the model area. However, development of numerical GW
modelling as well as simulation of GW flow has been performed in an integrated MIKE-11
and MIKE-SHE platform. From this assessment it is found that potential recharge for the
study area is 444 mm
Papers by Rumman Mowla Chowdhury