276 Journal of the Tunisian Chemical Society, 2017, 19, 276287 * Corresponding author, email address : [email protected] Experimental Design Methodology Applied to Boron Removal from brine by adsorption onto insitu precipitated magnesium hydroxide
In the present paper, boron removal from aqueous solution by adsorption was investigated and 2 3 full factorial design was applied. Non activated waste sepiolite (NAWS) and HCl activated waste sepiolite (AWS) were used as adsorbents. Regression equation formulated for boron adsorption was represented as a function of response variables.
removal of boron from effluent. In the present study, removal of boron from synthetic boric acid solutions containing high concentrations of boron by adsorption over an anion exchange resin (Amberlite IRA 743) was investigated on a batch basis. The effects of various process parameters on boron removal in terms of adsorption capacity were
The leachate wastewater originated from the hazardous waste landfill. I''ve done few test on chemical precipitation with zinc sulphate and ferrous sulphate. Both chemicals give 5065% removal of boron. The influent boron concentration is around 150200 ppm. Is there any other experience in removing boron from wastewater using chemical precipitation.
Boron removal increased with increasing pH and adsorbent dosage, but decreased with increasing temperature. The optimum conditions were found as pH = 7, adsorbent dosage = 1 g/25 mL solution, and temperature = 25°C by using factorial design. In addition, the effects of pH, temperature, adsorbent dosage, and initial boron concentration on boron
In this study, boron removal from synthetic solutions using Purolite S 108 resin converted to hydroxyl form was investigated. Experiments were carried out in batch mode as a funct
The reaction mechanism between boric acid and Solution temperature significantly effects the Purolite S 108 resin boron removal by ion exchange method because boron anion type changes in liquid phase based on 598 M. Korkmaz et al.: Full Factorial Design of Experiments for Boron Removal from Colemanite Mine Wastewater
The first part of this paper examines current regulation of boron in the water environment. In the second part, appliions of boron removal by RO and other technologies are presented in relation to overall water treatment and wastewater treatment system design. Opportunities for optimizing boron removal processes are highlighted.
Boron Removal Using Amberlite IRA743 INTRODUCTION With Amberlite IRA743, borate can be removed very effectively from water. IRA743 is so selective for boric acid that practically any salt background is tolerable. There are different fields of appliion: n Removal of boron for drinking water n Removal of boron in ultrapure water
In part 1 of this series, we began a discussion of a seawater desalination process that takes the boron removal issue to the edge, using four desalination stages and a downstream boron ion exchanger that removes the boron to an undetectable level of less than 0.01 mg/l of boron
1.4. Boron removal methods. In the past few decades, numerous of separation technologies have been applied in the boron removal from aqueous solutions, including adsorption, reverse osmosis (RO), ion exchange, electrocoagulation,,, Donnan dialysis,, chemical coagulation,, hybrid process . Adsorption is an extremely effective way for boron removal from aqueous solutions at very low
Boron Separation Processes fills this gap and provides a unique and single source that highlights the growing and competitive importance of these processes. For the first time, the reader is able to see in one reference work the stateoftheart research in this rapidly growing field.
An experimental test carried out using 23 full factorial design. The results obtained from the study on parameters showed that as pH increased and temperature decreased boron removal by adsorption increased. Adsorbed boron amount on AWS was higher than that of NAWS. Maximum boron removal was obtained at pH 10 and 20°C for both adsorbents.
The effects of current density, EC time and initial boron concentration and their mutual interaction were investigated using 23 full factorial design. At optimal conditions, boron removal from
Boron removal from water. Boron is an essential trace nutrient, but if found in levels higher than 0.3 mg/L it can be very damaging to agricultural crops when present in irrigation water. It is also a known teratogen, causing potential damage to human reproduction.
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Boron removal was investigated using resins like Amberlite IRA 743 , Purolite S 108 and Diaion CRB 02 .Adsorption of boron has been studied using coal and fly ash  or activated sludge
11) Cai Jing, Chen Wenhui, Zheng Songsheng, Li Jintang, Chen Chao, Luo Xuetao. Removal of boron and metal impurities by a metallurgical refining process from MGSi, The 3rd International Workshop on Science and Technology of Crystalline Silicon Solar
Design and fabriion of an innovative and environmental friendly adsorbent for boron removal Article in Water Research 45(6):2297305 · March 2011 with 84 Reads How we measure ''reads''
A column sorption study was carried out using calcium alginate gel beads as adsorbent for the removal of boron from aqueous solutions. The breakthrough curve was obtained as a function of pH, initial concentration of boron, feed flow rate, adsorbent mass and column diameter.
Why does desalinated water need a further Boron Removal Process? Boron occurrence in seawater varies from 4 to 5.5 mg/L, proportionally to seawater salinity. It mainly comes from waste water treatment plants discharge, begin used in soap and detergents, as well as agricultural fertilizers.
Boron has been widely used in various manufacturing industries, and the level of boron in the industrial effluent can range from as high as several grams per liter to as low as a few micrograms per liter. Due to the potential adverse health effect of boron on human beings, the World Health Organization (WHO) has provided a guideline for the boron concentration in drinking water to be less than
Boron Removal in Molten Silicon by a SteamAdded Plasma Melting Method*1 Naomichi Nakamura, Hiroyuki Baba, Yasuhiko Sakaguchi1 and Yoshiei Kato*2 1Steel Research Laboratory, JFE Steel Corporation, Chiba 2600835, Japan Oxidation and removal of boron from molten silicon by a steamadded plasma melting method was investigated as an important part of a
Boron has been found to be potentially harmful in drinking water. A provisional guideline of 0.5 mg/L as B in drinking water was established by WHO. Water used in agriculture also has a limit in boron: citrus trees (orange, lemon etc.) are sensitive to boron in the irrigation water, and the commonly accepted limit here is also 0.5 mg/L as B.
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