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Articles by Kaizar Hossain
Total Records ( 5 ) for Kaizar Hossain
  Kaizar Hossain , Shlrene Quaik , Norli Ismail , Mohd Rafatullah , Isahaque Ali , Zulkarnain A. Hatta , Maruthi Avasn , Gaurav Pant and Shaik Rameeja
  Global environmental changes have the potential to exacerbate the ecological and societal impacts of changes in biodiversity. In many regions, land conversion forces declining populations towards the edges of their species range, where they become increasingly vulnerable to collapse if exposed to further human impact. South Asia is home to over one fifth of the world’s population and is known to be the most disaster prone area in the world. The high rates of population growth and natural resource degradation, with enduring high rates of poverty and food diffidence make South Asia one of the most vulnerable regions to the impacts of climate change. Temperature rise will negatively impact crop yields in tropical parts of South Asia where these crops are already being grown close to their temperature tolerance threshold. While direct impacts are associated with rise in temperatures, indirect impacts due to water availability and changing soil moisture status and pest and disease incidence are likely to be felt. The most significant impacts are likely to be borne by small-holder rainfed farmers who constitute the majority of farmers in this region and possess low financial and technical capacity to adapt to climate variability and change. This article will be improved the understanding of the climate change impacts, vulnerability and the adaptation practices to cope with climate change could help this process.
  Shlrene Quaik , Kaizar Hossain and Mahamad Hakimi Ibrahim
  Background: Currently, most farmers favour more on application of inorganic fertilizer compared to organic fertilizer. In the long run, utilization of inorganic fertilizer has raised concern towards health as well as environmental issues. More and more rural lands are turning unsuitable for farming due to the pollution of land and water by factory farms. Nonetheless, in urban agriculture, the use of inorganic fertilizer in such proximity to residential area is detrimental to health over a long period of time. In order of making urban farming viable in the sense of environmental friendly, alternatives of chemical fertilizers are getting acceptance. This project studied on the potential of utilizing vermicomposting derived liquids in urban farming fertigation. Materials and Methods: Pre-composted cow dung was used in the study. Liquids (vermiwash and vermicomposting leachate) collected were diluted to prevent leaf scorching. Chemical analysis showed the present of plant nutrients. Enhancement in chlorophyll contents (chlorophyll a, b and total chlorophyll) were observed as well as improvement in nutrients distribution in sweet potato leaf. Results: This study showed potential of vermiwash and vermicomposting leachate as organic foliar fertilizer. Conclusion: Hence, the application of these liquids in field scale urban farming fertigation is possible. For enriching the nutrients content of vermiwash and vermicimposting leachate, other nutrients rich substrate may be added.
  Kaizar Hossain and Norli Ismail
  Presently, 50-60 m3 of water needed to produce a ton of paper and around 240-250 chemicals have been identified in effluents, which are produced at different stages of paper making in pulp and paper industry. The pulp and paper industry is typically associated with pollution problems related to high BOD, COD, toxicity, AOX, color, suspended solids, lignin and its derivatives and chlorinated compounds. Although numerous studies have looked ways by various researchers to remove COD, BOD, color etc. of pulp and paper effluents, the problem still persists. Number of microorganisms including bacteria, fungi and actinomycetes has been implicated to degrade the xenobiotic compounds present in pulp and paper mill effluent. This article review the origins and effects of major pollutants present in pulp and paper mill effluents and the progress made in their reduction through fungi, bacteria, algae and enzymes as well as further scope is also discussed.
  Kaizar Hossain , Shlrene Quaik , Gaurav Pant , Sarita Yada , Y.A. Maruthi , Mohd Rafatullah , Mohammed Nasir and Norli Ismail
  Environmental pollution is a major global concern. When sources of water pollution are enumerated, agriculture is, with increasing frequency, listed as a major contributor. One of the major factors determining uptake and toxicity to plants is the form of arsenic (As). The present study deals with the source of arsenic contamination in groundwater, accumulation of the toxin in soils and crops in the affected belt of West Bengal irrigated with contaminated groundwater and in animal tissues and products and demonstrates the pathways, other than drinking water, through which arsenic may have access to human, animal and crop systems. This article can be established well with the findings of a rice pot-culture experiment with different crop plants raised in a crop cafeteria experiment exhibited varying tendencies to accumulate arsenic in different plant parts in the following sequence: root>stem>leaf>economic produce.
  Wang Jiao , Mohd Rafatullah , Norhashimah Morad , Kaizar Hossain and Teng Tjoon Tow
  The extraction of Rhodamine B (RB) dye from aqueous solution by using soybean oil as organic solvent was investigated in this study. This study is aimed to found out the significant factors, which affect the efficiency of RB extraction using a full factorial design. A total of four factors (pH, organic to aqueous phase ratio, mixing time and mixing speed) were investigated. A full factorial design was applied and the results were analyzed statistically and only pH, organic phase to aqueous phase ratio and their second-order interaction influence the RB extraction significantly. The regression model for RB extraction was developed and the adequacy of the model was examined. The value of R2adj (98.57%) and R2 (99.71%) were found that results showed the full factorial design is a very useful tool for the screening of factors.
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