Zinc Removal Using Honey Dew Rind

2014 ◽  
Vol 680 ◽  
pp. 150-153 ◽  
Author(s):  
N. Othman ◽  
A.S. Che-Azhar ◽  
A. Suhaimi
Keyword(s):  
Heavy Metals ◽  
Adverse Effect ◽  
Industrial Waste ◽  
Contact Time ◽  
Human Life ◽  
Biosorption Process ◽  
Zinc Removal ◽  
Metals Removal ◽  
Optimization Study ◽  
Heavy Metals Pollution

Heavy metals pollution in wastewater from agriculture and industrial waste has been a great concern due to their toxic condition and adverse effect to the environment and human life. One of the treatment of heavy metals through biosorption. In this study, zinc is the highest concentration heavy metal in mosaics wastewater with 350 - 450 mg/L and thus, it has been selected for further study for heavy metals removal. Honeydew rind was used as biosorbent material to remove zinc in the wastewater. Characterization and optimization study were carried out. The optimum condition for pH, biosorbent amount, concentration of wastewater and contact time are at pH 6, 1.5g adsorbent, 400 mg/L zinc and 30 minutes contact time respectively 63% zic removal. This finding indicates that honeydew rind is effectively acted as biosorbent in biosorption process for removing zinc from wastewater.

Utilization of Powdered Cassava Stem as an Alternative Bioadsorbent for Lead (Pb2+) Removal from Aqueous Solution

2021 ◽  
Vol 1033 ◽  
pp. 82-86
Author(s):  
Tintin Mutiara ◽  
Andira Budi Trimartina ◽  
Rafika Erniza Putri ◽  
Achmad Chafidz
Keyword(s):  
Heavy Metals ◽  
Industrial Waste ◽  
Contact Time ◽  
Metal Ion ◽  
Adsorption Process ◽  
Cellulose Content ◽  
Optimum Conditions ◽  
Adsorption Method ◽  
Cassava Stem ◽  
Mesh Sieve

Industrial waste containing heavy metals can pollute the aquatic environment. One method that can be done to manage heavy waste is the adsorption method that uses adsorbent from cassava stem powder. This research was conducted to utilize cassava stem powder waste for the adsorption of Pb2 + metal ions. Cassava stem powder was mashed until it passed 100 mesh sieve. Cassava stems have a cellulose content of 70-80%, lignin 15-20%, ADF 15-20% and cellulose can be used as an absorber of heavy metals. The adsorption process is carried out with variations in pH, time and concentration under optimum conditions. In this adsorption involves the functional groups contained therein so that the interaction between the adsorbent with the metal ion Pb2 +. Based on the research, the optimum conditions were obtained at pH 6, 180 minutes contact time and 50 ppm concentration. This test is carried out using Atomic Absorption Spectroscopy (AAS).

Watermelon Rind: A Potential Adsorbent for Zinc Removal

2014 ◽  
Vol 680 ◽  
pp. 146-149 ◽  
Author(s):  
Norzila Othman ◽  
Y.S. Kueh ◽  
F.H. Azizul-Rahman ◽  
R. Hamdan
Keyword(s):  
Heavy Metals ◽  
Aqueous Solution ◽  
Contact Time ◽  
Industrial Revolution ◽  
Zinc Concentration ◽  
Water Bodies ◽  
Zinc Removal ◽  
Watermelon Rind ◽  
Optimum Ph

The industrial revolution has significantly increase the discharge of wastewater into water bodies with heavy metals. In this study, watermelon rind was used as a biosorbent. Wastewater from mosaic industry was characterized by using flame AAS and zinc was found to have concentration range of 350mg/L to 450mg/L. Watermelon rind was characterized by using XRF and SEM. The results from XRF before biosorption shows the presence of Si to enhance biosorption. Zinc present after biosorption. The optimum pH, biosorbent amount, zinc concentration and contact time were found to be pH8, 1.5g, 400mg/L, and 30minutes respectively. The watermelon rind was proven as an effective biosorbent for zinc removal from aqueous solution

scholarly journals The evaluation and determination of heavy metals pollution in edible vegetables, water and soil in the south of Tehran province by GIS

2015 ◽  
Vol 41 (2) ◽  
pp. 64-74 ◽  
Author(s):  
Hamid Shirkhanloo ◽  
Seyed Alireza Hajiseyed Mirzahosseini ◽  
Nasrin Shirkhanloo ◽  
Seyyed Ali Moussavi-Najarkola ◽  
Hadi Farahani
Keyword(s):  
Heavy Metals ◽  
Industrial Waste ◽  
Agricultural Soils ◽  
Absorption Spectrometry ◽  
Oil Refinery ◽  
High Concentration ◽  
Cobalt Nickel ◽  
Heavy Metals Pollution ◽  
Well Waters

Abstract In this study, heavy metals pollutions in waters, soils and vegetables were investigated from farms, near oil refinery in south of Tehran city, Iran (Shahre Ray). The most important heavy metals in Iranian oil are vanadium, cobalt, nickel, arsenic and mercury (V, Co, Ni, As, Hg). In this region, the concentration of heavy metals in soils, well waters and leafy edible vegetables were evaluated in ten different points of farms. Geographic information systems (GIS) were used to estimate the levels of heavy metals concentration at unmeasured locations. After sample preparation, concentrations of heavy metals in vegetables, soils and waters were determined by atomic absorption spectrometry (AAS). Five different leafy edible vegetables from farms, i.e., Persian leek, dill, parsley, spinach and radish were sampled in spring, summer and autumn 2012. In vegetables and well water samples, the concentrations of V, Ni and Co were above the permissible limit of heavy metals as compared to WHO guidelines and the concentrations of these metals in agricultural soils were found to be lower in accordance to soil references. The industrial waste waters had high concentration of heavy metals in this area. In consequence, the results of this study indicate that industrial waste water can cause pollution in well waters and edible vegetables. So, this region is not suitable for cultivation and growing vegetables.

Zinc removal from aqueous solution using novel adsorbent MISCBA

2016 ◽  
Vol 6 (3) ◽  
pp. 377-388 ◽  
Author(s):  
Ibrahim Umar Salihi ◽  
Shamsul Rahman Muhamed Kutty ◽  
Muhamed Hasnain Isa ◽  
Nasir Aminu
Keyword(s):  
Heavy Metals ◽  
Aqueous Solution ◽  
Metal Ions ◽  
Contact Time ◽  
Adsorption Process ◽  
Negative Impact ◽  
Batch Adsorption ◽  
Maximum Adsorption Capacity ◽  
Adsorbent Dosage ◽  
Zinc Removal

Pollution caused by heavy metals has become a serious problem to the environment nowadays. The treatment of wastewater containing heavy metals continues to receive attention because of their toxicity and negative impact on the environment. Recently, various types of adsorbents have been prepared for the uptake of heavy metals from wastewater through the batch adsorption technique. This study focused on the removal of zinc from aqueous solution using microwave incinerated sugarcane bagasse ash (MISCBA). MISCBA was produced using microwave technology. The influence of some parameters such as pH, contact time, initial metal concentration and adsorbent dosage on the removal of zinc was investigated. The competition between H+ and metal ions has affected zinc removal at a low pH value. Optimum conditions for zinc removal were achieved at pH 6.0, contact time 180 min and adsorbent dosage of 10 g/L, respectively. The maximum adsorption capacity for the removal of zinc was found to be 28.6 mg/g. The adsorption process occurred in a multilayered surface of the MISCBA. Chemical reaction was the potential mechanism that regulates the adsorption process. MISCBA can be used as an effective and cheap adsorbent for treatment of wastewater containing zinc metal ions.

scholarly journals Impact of magnetic field on electrochemistry of heavy metals removal processes by duckweed (lemna)

2019 ◽  
Vol 91 ◽  
pp. 01004
Author(s):  
Natalia Politaeva ◽  
Rostislav Rusinov ◽  
Yurii Karyakin ◽  
Boris Fokin ◽  
Konstantin Grigoryev
Keyword(s):  
Magnetic Field ◽  
Heavy Metals ◽  
Heavy Metal ◽  
Contact Time ◽  
Heavy Metal Ions ◽  
Parallel Magnetic Field ◽  
Initial Concentration ◽  
Metals Removal ◽  
Removal Processes ◽  
Bioelectrochemical Reactor

The influence of various factors (initial concentration of the solution, contact time of the biosorbent with the solution, and the action of a constant parallel magnetic field of intensity 4 kA/m (50 Oe)) on the processes of extraction of heavy metal ions (Zn, Cd, Cu) from wastewater with the help of bioelectrochemical reactor - duckweed is in the focus of this study.

scholarly journals Eco Friendly Sorbent for the Removal of Iron and Lead from Industrial Waste Water

2019 ◽  
pp. 125-128
Author(s):  
Renjusha S ◽  
Shyama Nair
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Industrial Waste ◽  
Contact Time ◽  
Metal Ion ◽  
Industrial Effluents ◽  
Batch Adsorption ◽  
Industrial Waste Water ◽  
Adsorption Studies ◽  
Removal Of Heavy Metals

Industrial effluents loaded with heavy metals are a cause of hazards to human and other forms of life. Conventional methods such as chemical precipitation, evaporation, electroplating, ion exchange, reverse osmosis etc., used for removal of heavy metals from waste water however, are often cost prohibitive having inadequate efficiencies at low metal ion concentrations. Biosorption can be considered as an alternative technology which has been proved as more efficient and economical for removal of heavy metals from the industrial waste water. In the present study, the adsorption capacity of epicarp of Atrocarpus heterophyllus for the removal of heavy metals, lead and iron were determined by batch adsorption studies. Adsorption of heavy metals were studied till equilibrium was reached. Studies were carried by using different doses of adorbent, varying the conditions of adsorption and contact time. The results obtained shows that, the adsorption of the metal ions is contact time and adsorbent dosage dependent. Adsorption studies obeys both Langmuir isotherm model and Freundlich models. The goal for this work is to develop inexpensive, highly available, effective adsorbents from epicarp of jackfruit as alternative to existing commercial adsorbents.

SORPTION OF ZINC USING MICROWAVE INCINERATED SUGARCANE BAGASSE ASH (MISCBA) AND RAW BAGASSE

2016 ◽  
Vol 78 (5-3) ◽  
Author(s):  
Ibrahim Umar Salihi ◽  
Shamsul Rahman Mohamed Kutty ◽  
Mohamed Hasnain Isa ◽  
Amirhossein Malakahmad ◽  
Usman Aminu Umar
Keyword(s):  
Heavy Metals ◽  
Sugarcane Bagasse ◽  
Contact Time ◽  
Water Environment ◽  
Correlation Coefficients ◽  
Living Organism ◽  
Negative Effects ◽  
Zinc Removal ◽  
Synthetic Solution ◽  
Sugarcane Bagasse Ash

Release of contaminated wastewater containing toxic pollutants has adverse negative effects to the receiving water environment. Heavy metals are non-biodegradable, with longer half –life and overtime, and can accumulate in living organism. Therefore, it is important to remove heavy metals from wastewater for its safe disposal. In this study, activated carbon prepared from thermal incineration of sugarcane bagasse was used in removing zinc from synthetic solution.  The prepared carbon is termed as microwave incinerated sugarcane bagasse ash (MISCBA). Raw non-incinerated bagasse was also employed to compare the removal capacities of the two adsorbents (MISCBA and raw bagasse). Parameters including pH, contact time, initial metal concentrations and adsorbents dosages were examined. The results showed that pH of 6.0, contact time 3 hours and adsorbents dosage of 12 g/L were found to be optimum for zinc removal. Removal capacities of 21.05 mg/g and 13.4 mg/g were determined for MISCBA and raw bagasse, respectively. Freundlich correlation coefficients for MISCBA and raw bagasse were found to be 0.7508 and 0.9233, respectively. Langmuir correlation coefficients were 0.9231 and 0.6423, for MISCBA and bagasse respectively.

Heavy Metals Removal Techniques from Industrial Waste Water

2021 ◽  
pp. 87-101
Author(s):  
Nimmy Srivastava ◽  
Jayeeta Chattopadhyay ◽  
Arushi Yashi ◽  
Trisha Rathore
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Industrial Waste ◽  
Industrial Waste Water ◽  
Heavy Metals Removal ◽  
Metals Removal

Sustainable Cost Indicators Used in Biosorption Process Applied for Heavy Metals Removal

2021 ◽  
Author(s):  
Isabela Maria Simion ◽  
Raluca Maria Hlihor ◽  
Mihaela Rosca ◽  
Catalina Filote ◽  
Petronela Cozma
Keyword(s):  
Heavy Metals ◽  
Heavy Metals Removal ◽  
Biosorption Process ◽  
Metals Removal

scholarly journals Spirulina platensis Geitler sebagai Fikoremediator Logam Berat Pb Skala Laboratorium

2016 ◽  
Vol 18 (2) ◽  
pp. 64
Author(s):  
Muhammad Sindhunata Prambodo ◽  
Riche Hariyati ◽  
Tri Retnaningsih Soeprobowati
Keyword(s):  
Heavy Metals ◽  
Spirulina Platensis ◽  
Industrial Waste ◽  
Research Study ◽  
Alternative Methods ◽  
Percentage Reduction ◽  
Adults And Children ◽  
Heavy Metals Pollution ◽  
Physical And Chemical ◽  
Remediation Process

Industrial waste contributes the heavy metals pollution in the environment, especially in the water. One of the heavy metals that pollute the environment is lead (Pb). Lead is a substance that is harmful to organisms, especially humans, both adults and children. Solutions to tackle Pb pollution isby remediation process. Physical and chemical remediation methods usually costly and ineffective. One of the alternative methods which is used is the bioremediation uses microalgae or called as phycoremediation. One of microalgae which is used as agents of  phycoremediation is Spirulina platensis Geitler because it’s easily cultured and it’s abundant in nature. This study aims to assess the population growth and the percentage reduction of Pb after inoculated with the use of Spirulina platensis Geitler. The method which is to cultivate S. platensis Geitler in brackish watermedia with a salinity of 15 ppt which have been added Pb with a concentration of 1 mg, 3 mg, and 5 mg for 8 days and observed the population and the percentage reduction of Pb heavy metals. Environmental factors such as temperature, salinity, pH, light intensity are conditioned to remain stable. After 8 days of research, study was able to reduce Pb. Each treatment has different concentrations decrease. Treatment Pb 1 mg of 0.949 into 0.603 mg / L; Pb 3 mg of 2.894 to 2.46 mg / L; and Pb 5 mg of 4.88 to 4.31 mg / L, with each percentage decline of 36%, 15% and 12%. The Pb 3 mg treatment has higher cell population (129.367 cell / ml) than control (106.600 cell/ml) while 1 mg and 5 mg treatment has 93.700 cell / ml and 93.500 cell / ml. Keywords: Spirulina platensis, phycoremediation, waste, lead.

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