American Journal of Chemical Research

By using low-cost Adsorbents process elimination of heavy metals from wastewater

Review Article of American Journal of Chemical Research By using low-cost Adsorbents process elimination of heavy metals from wastewater 1Baby Abrarunnisa Begum. 2K.B. Shanthi Sudha 1Associate Professor, Chemistry Department, SWCET, Hyderabad, Telangana, India 2Associate Professor, Chemistry Department, Andhra mahila Sabha for women Osmania University (Campus) Hyderabad, Telangana, India The beginning of industrialization human being has observed a variety of environmental concerns on the earth. The industrialization has not simply carried growth and affluence but finally troubled the environment. One of the crashes is noticeable, in form of water pollution. Now the present study of heavy metal pollution of water body has been talk over. Effluents from an unlimited amount of industries viz., textile, tannery, dyes, pigment, paint, wood processing, electroplating, leather, petroleum refining etc., have a key amount of heavy metal in their wastewater. The conventional technique of treatment heavy metal contamination contains chemical precipitation, membrane separation, chemical oxidation, ion exchange, electro dialysis, reverse osmosis, etc. These procedures are costly, energy intensive and often linked with creation of toxic by-product. Hence, the adsorption has been experimental as a cost-efficient method for treatment of heavy metals removal from wastewater. In the existing study numerous inexpensive adsorbent has been an analysis as a reduction of heavy metal effluence from wastewater. These adsorbent include resources of natural origin similar to zeolites, peat moss, peat moss, chitin, clay are find to be a real agent for elimination of lethal heavy metal like Cu, Ni, Hg, Zn, Cr , Pb, Cd, etc. Distinctly from these, a range of farming wastes like waste tea, rice husk, black gram neem bark, walnut shell, etc. Also known to be an influential adsorbent for the eliminating heavy metal from wastewater. at the side of that inexpensive or low-cost manufacturing byproduct like lignin, fly ash, iron (III) red mud, hydroxide ...

A Study on Moisture Content of Bamboo Fiber Reinforced HDPE Composite at Different Temperature

Research Article of American Journal of Chemical Research A Study on Moisture Content of Bamboo Fiber Reinforced HDPE Composite at Different Temperature Md. Shaharul Islam1, 2 , Md. Hafizur Rahman1, G M Arifuzzaman Khan1, M Shamsul Alam1, Md. Helal Uddin1 1Department of Applied Chemistry & Chemical Engineering, Islamic University, Kushtia-7003, Bangladesh. 2Department of Chemistry, Bangladesh Army University of Engineering & Technology(BAUET), Qadirabad Cantonment, Natore-6431, Bangladesh. Natural fibers are becoming a competitive option as reinforcement of polymeric composite materials due to their bio-based character, good specific mechanical properties, low cost and inexhaustible supply. The aim of this study was to make the Bamboo fiber and high density polyethylene (HDPE) composite and to measure the wet loss of the composite due to removal of moisture content at 105 0C, 125 0C and 135 0C temperature. Bamboo fiber were extracted from bamboo culm and treated with 0.5 M NaOH. Bamboo fiber-reinforced HDPE composites were prepared employing melt blending technique followed by heat press molding with various weight fractions (5, 10, 30 and 40 wt. %) of the treated bamboo fiber with HDPE. A systematic investigation of the thermal behavior on the moisture content of the composites was carried out. It was observed that at 135 0C temperature more moisture removed from the composite compared to 105 0C and 125 0C temperature. It also revealed that the weight loss of the composite increased with the increase in the Bamboo fiber loading (5% to 40%). Keywords: Bamboo Fiber, HDPE, Composite, Reinforcement ...

Heavy Metals in Soil and Vegetables Irrigated with Ex- Tin Mining Ponds Water in Barkin – Ladi Local Government Area Plateau State, Nigeria

Research Article of American Journal of Chemical Research Heavy Metals in Soil and Vegetables Irrigated with Ex- Tin Mining Ponds Water in Barkin - Ladi Local Government Area Plateau State, Nigeria Mafuyai G. M,* Eneji I. S, Sha’Ato R and Nnamonu L. A Department of Chemistry Faculty of Natural Sciences, University of Jos, Plateau State Tin mining pond water irrigated fields can cause potential contamination with heavy metals to soil and vegetables, thus pose a threat to human beings. The current study was designed to investigate the contamination of the soil with toxic heavy metals and their accumulation in edible vegetable crops. The heavy metals Pb, Cu, Cd, Zn, Cr, Fe, Mn and As were analyzed for their bioaccumulation factors to provide baseline data regarding environmental safety and the suitability of tin mining pond water for irrigation in the future. The contamination factor (CF) of these metals in the soil were calculated and indicated levels of metal contamination in the order of Cd > Zn > Pb > Cr > Cu > As ˃ Fe ˃ Mn. The concentrations of Pb, Cd, Cr, As, and Mn in the edible vegetables were above the safe limit prescribe by FAO/WHO, 2007 and EU, 2002 in all studied vegetables. The results indicated a potential pathway of human exposure to slow poisoning by heavy metals due to the utilization of vegetables grown on heavy metal contaminated soil that was irrigated with tin mining pond water sources. Amongst the studied vegetables, cabbage was safe from other metal except for As and Cr that were observed to exceeds tolerable limit. The irrigation source was identified as the source of the soil pollution in this study. Thus, the consumption of these vegetables might poses substantial health risk to consumers for this reason we therefore, emphasizes the need ...

Removal of natural organic matter from water using chemically activated coffee husk

Research Article of American Journal of Chemical Research Removal of natural organic matter from water using chemically activated coffee husk Dida Gudeta1,2, Dawit Derese1, Fekadu Fufa1, Bart Van der Bruggen2,3 1Faculty of Civil and Environmental Engineering, Jimma University, Ethiopia; 2Department of Chemical Engineering, KU Leuven, Belgium;3Faculty of Engineering and the Built Environment, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa The presence of natural organic matter (NOM) in source water has posed many challenges for conventional water treatment facilities. Small organic acids, such as humic acid, present in NOM, have a high potential to influence the performance of water treatment processes. Uncontrolled application of agricultural chemicals leads to the simultaneous presence of toxic substances. In this work, batch adsorption experiments were conducted to examine the biosorption of HA onto chemically activated coffee husk. The biosorption process was studied as a function of operating conditions, such as contact time, pH of the solution, HA concentration, adsorbent dose and agitation speed parameters. Experimental results showed that the adsorption has an equilibrium time of 60 min with a maximum adsorption of 93.7%. The optimum pH for maximum HA adsorption was found to be 5.5, with a maximum adsorption of 94.3%. . As the dose of adsorbent increased from 1 to 25 g/L, the concentration of HA was observed to reduce from 10 to 1.67 mg/L which is below the WHO (World Health Organization) guideline value of 2 mg/L. The amount of HA adsorbed increased with increasing the initial adsorbent concentration from 0.5 to 20 mg/L. The adsorption kinetics well fitted the pseudo-second order model with the correlation coefficient R2 = 0.997 and Ks = 0.078. The experimental sorption equilibrium can be represented by the Langmuir isotherm (R2 = 0.998, SSE = 0.006). An average desorption capacity of 87.3% was observed ...

Dr Chunya Li
Professor, College of Chemistry and Materials Science, South Central University for Nationalities, Wuhan, Hubei, China

Dr Mohammad Hadi Dehghani
Professor, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences

Dr Mohamed Abdel Moneim Deyab
Physical Chemistry, Egyptian Petroleum Research Institute (EPRI) Cairo

Dr Boumediene Haddad
Associate professor (lecturer and Scientific Researcher), Department of Chemistry, Dr. Moulay Taher University

Dr. Anil Kumar
Assistant Professor, Department of Chemistry, Lovely Professional University

Dr. Prakash Prajapat
Assistant Professor, Department of Chemistry, Mehsana Urban Institute of Sciences, Ganpat University

Dr Swapnila Roy
30B/4,Mahendra Roy lane,Kolkata-46.

Dr Suban K Sahoo
Assistant Professor, Department of Applied Chemistry, S.V. National Institute of Technology (SVNIT) Ichchanath

Dr Azeez Abdullah Barzinjy
Department of Physics, College of Education, Salahaddin University

Dr. Rasha Samir Mohamed Kamal
Professor researcher associated, Egyptian Petroleum Research Institute

Dr Sharma Kumari Kavita
Department of Chemistry, Idaho State University

Dr Qingchun Ge
Professor, College of Environment and Resources, Fuzhou University

Dr Mohamed A. Hassaan
Researcher, National Institute of Oceanography and Fisheries (NIOF)

Dr Hassan Karimi-Maleh
Department of Chemistry, Graduate University of Advanced Technology

Dr Hager Rabea Mohamed Ali
Researcher, Central lab department, Egyptian Petroleum Research Institute (EPRI)

Dr Ho Soon Min
Associate Professor, INTI International University

Associate professor, Department of Chemical Engineering, Faculty of Pharmaceutical Engineering Process,University of Constantine

Dr. Himanshu Kapoor
Assistant Professor, Department of Chemistry, Lovely Professional University

Dr. Harish Mudila
Asst. Professor, Dept. of Chemistry, Faculty of Technology and Sciences, Lovely Professional University

Dr. Praveen Kumar Sharma
Associate Professor, Department of Chemistry, Lovely Professional University

Dr. Keyur D. Bhatt
Head, Department of Chemistry, Mehsana Urban Institute of Science, Ganpat University

Dr Viraj H Mankar
Assistant Professor, Lovely Professional University

Dr. Marwa A. Fouad
Associate Professor, Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University

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American journal of chemical research