Consortium of Higher Aquatic Plants and Microalgae Designed to Purify Sewage of Heavy Metal Ions

2018 ◽  
Vol 65 (1) ◽  
pp. 143-149 ◽  
Author(s):  
N. R. Akmukhanova ◽  
B. K. Zayadan ◽  
A. K. Sadvakasova ◽  
K. Bolatkhan ◽  
M. O. Bauenova
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Aquatic Plants ◽  
Heavy Metal Ions ◽  
Higher Aquatic Plants

scholarly journals Ecological aspects of heavy metals accumulation in higher aquatic plants in the process of phytoremediation

2018 ◽  
Vol 7 (3) ◽  
pp. 23-27
Author(s):  
Olga Fedorovna Galdeeva ◽  
Olga Viktorovna Kozlovskaya ◽  
Alina Yurievna Kopnina
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Ions ◽  
Aquatic Plants ◽  
Heavy Metal Ions ◽  
Elodea Canadensis ◽  
Higher Aquatic Plants ◽  
Ecological Aspects ◽  
Bivalent Copper ◽  
Water Plants

This paper deals with pollution of natural and waste waters with heavy metals in the conditions of technogenic impact. It describes one of the numerous methods for neutralizing various contaminants in the aquatic environment, in particular phytoremediation, which has been used for more than 50 years in various countries. The paper considers the role of higher aquatic plants which, according to a variety of confirmatory studies, can be used to extract toxic components from natural and waste water - heavy metal ions. The authors consider a possibility of inorganic origin pollutants extraction with the help of higher water plants of Myriophyllum verticillatum L. and Elodea canadensis Michx. in laboratory conditions. The authors determined pollutants concentration change dependence in the solution with a process duration of less than 10 hours. The authors proved that the maximum purification efficiency is achieved only with the combined use of higher aquatic plants and perfetron. The results of the studies indicate a possibility of water purification from heavy metal ions (ferric iron, bivalent copper, bichromate ions) with the help of higher water plants Myriophyllum verticillatum L. and Elodea canadensis Michx.

scholarly journals A METHOD FOR ACCELERATING ELECTROCHEMICAL PHYTOREMEDIATIONOF WASTE WATER FROM HEAVY METAL IONS WHEN EXPOSED TO PHYTOSORBENT PLANTS BY PHYSICAL FIELDS

2020 ◽  
pp. 132-143
Author(s):  
L.N. Olshanskaya ◽  
R.Sh. Valiev ◽  
T.V. Osipova
Keyword(s):  
Magnetic Field ◽  
Heavy Metal ◽  
Metal Ions ◽  
Aquatic Plants ◽  
Constant Magnetic Field ◽  
Heavy Metal Ions ◽  
Lemna Minor ◽  
Waste Waters ◽  
Higher Aquatic Plants ◽  
Physical Fields

The article is devoted to the problem of increasing the efficiency of purification of natural and waste waters from heavy metal ions by the method of electrochemical phytoremediation. The results of studies on the management of phytoremediation processes by exposure to higher aquatic plants by external physical fields (constant magnetic field, combined exposure to a constant magnetic field and geomagnetic field, constant magnetic field and weak electric (j) fields) are presented. The ef-fect of accelerating the sorption of heavy metal ions under the influence of external physical fields on plants of Lemna minor has been experimentally confirmed. Rational conditions for controlling the processes of selectivity and increasing the rate of electrochemical phytoremediation and the completeness of the extraction of heavy metal ions from contaminated waters using higher aquatic plants are determined. A flow chart of the treatment of wastewater from heavy metals by the phytoremediation method using a biopond / settler populated by higher aquatic plants is proposed.

Bioadsorption of Multiple Heavy Metal Ions by Rhizophora Apiculate sp. and Elaesis Guineensis sp.

2017 ◽  
Vol 14 (1) ◽  
pp. 15
Author(s):  
M.B. Nicodemus Ujih ◽  
Mohammad Isa Mohamadin ◽  
Milla-Armila Asli ◽  
Bebe Norlita Mohammed
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Removal Efficiency ◽  
Heavy Metal Ions ◽  
Agricultural Waste ◽  
Living Organism ◽  
Heavy Metal Concentration ◽  
Industrial Area ◽  
Electrochemical Treatment ◽  
Chemical Oxidation

Heavy metal ions contamination has become more serious which is caused by the releasing of toxic water from industrial area and landfill that are very harmful to all living organism especially human and can even cause death if contaminated in small amount of heavy metal concentration. Currently, peoples are using classic method namely electrochemical treatment, chemical oxidation/reduction, chemical precipitation and reverse osmosis to eliminate the metal ions from toxic water. Unfortunately, these methods are costly and not environmentally friendly as compared to bioadsorption method, where agricultural waste is used as biosorbent to remove heavy metals. Two types of agricultural waste used in this research namely oil palm mesocarp fiber (Elaesis guineensis sp.) (OPMF) and mangrove bark (Rhizophora apiculate sp.) (MB) biomass. Through chemical treatment, the removal efficiency was found to improve. The removal efficiency is examined based on four specification namely dosage, of biosorbent to adsorb four types of metals ion explicitly nickel, lead, copper, and chromium. The research has found that the removal efficiency of MB was lower than OPMF; whereas, the multiple metals ions removal efficiency decreased in the order of Pb2+ > Cu2+ > Ni2+ > Cr2+.

Comparative Bio-sorption of Cadmium and Nickel Ions from Aqueous Solution onto Fibers of Date Palm using Fluidized Bed Column

2019 ◽  
Vol 70 (5) ◽  
pp. 1507-1512
Author(s):  
Baker M. Abod ◽  
Ramy Mohamed Jebir Al-Alawy ◽  
Firas Hashim Kamar ◽  
Gheorghe Nechifor
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Fluidized Bed ◽  
Removal Efficiency ◽  
Heavy Metal Ions ◽  
Date Palm ◽  
Operating Conditions ◽  
Initial Concentration ◽  
Bed Height

The aim of this study is to use the dry fibers of date palm as low-cost biosorbent for the removal of Cd(II), and Ni(II) ions from aqueous solution by fluidized bed column. The effects of many operating conditions such as superficial velocity, static bed height, and initial concentration on the removal efficiency of metal ions were investigated. FTIR analyses clarified that hydroxyl, amine and carboxyl groups could be very effective for bio-sorption of these heavy metal ions. SEM images showed that dry fibers of date palm have a high porosity and that metal ions can be trapped and sorbed into pores. The results show that a bed height of 6 cm, velocity of 1.1Umf and initial concentration for each heavy metal ions of 50 mg/L are most feasible and give high removal efficiency. The fluidized bed reactor was modeled using ideal plug flow and this model was solved numerically by utilizing the MATLAB software for fitting the measured breakthrough results. The breakthrough curves for metal ions gave the order of bio-sorption capacity as follow: Cd(II)]Ni(II).

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