Oil and Gas – selective removal of boron from produced water and refinery wastewater with tolerance to suspended solids and high total dissolved solids in the feed
Boron Selective AMBERLITE PWA10 resin is a unique drinking water grade ion exchange resin designed for the removal of boron from drinking water. The resin can be regenerated using a two-step process consisting of a regeneration step to displace the boron followed by a conversion step. AMBERLITE PWA10 resin has been shown to be
AmberLite™ PWA10 Ion Exchange Resin is a unique drinking water grade, macroporous resin designed for the removal of boron from drinking water. The resin can be regenerated using a two-step process consisting of a regeneration step to displace the boron followed by a conversion step. AmberLite PWA10 resin has been shown to be nearly universal ...
According to Rohm and Haas (1997), the selectivity for boron is very high: the theoretical retention capacity reaches 5 to 7 mg/l, but the practical capacity depends on …
The boron removal was evaluated as a function of time, 4 g of resin was added to 1 L of DI water containing 30 mg/L boron; the solution was slowly stirred at ambient temperature (25 °C). The boron was added in dissolved form from stock solution (1000 mg/L) of boron prepared from boric acid (5.7 g in 1000 mL).
The maximum removal efficiency of boron was around 47% at neutral pH. The application of date seed ash is a promising adsorbent for boron removal where it can be used as pretreatment before ...
The effect of the sorbent dosage on boron removal was performed in order to select the best conditions for the process. Experiments were carrie d out at two different boron concentrations: 5 mg
In addition, Dominguez et al. [31] tested the same commercial membranes as described in Table 1 to remove boron from the solution containing a boron concentration of 5 mg/L at the same experimental conditions. It was shown that single-pass SWRO had high boron rejection as shown in Table 1.. Moreover, Ting Chiang et al. [35] …
Boron removal from wastewaters was performed with N-glucamine-type chelating resins (Diaion CRB 02). The boron elution from the resin was carried out with 5% H 2 SO 4 solution and the regeneration of the resin was performed with 4% NaOH solution. A weak base ion-exchange resin (Diaion WA 30) was used to separate boron from …
Select Chapter 12 - Boron Removal From Geothermal Water Using Membrane Processes. Book chapter Full text access. Chapter 12 - Boron Removal From Geothermal Water Using Membrane Processes. Pages. 267-283. View chapter. Abstract. The World Health Organization (WHO) has recommended the drinking water limits for boron to be as low …
Exploring Possibility of the Chromium (Cr) Removal from Molten Aluminum by adding Boron Bearing Additive (Aluminum-Boron Master Alloy) - Volume 24 Issue S1 ... To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this ...
Abstract We study quantitative relationships between the triangle removal lemma and several of its variants. One such variant, which we call the triangle-free lemma, states that for each $epsilon>0$ there exists M such that every triangle-free graph G has an $epsilon$ -approximate homomorphism to a triangle-free graph F on at most M …
Boron removal by adsorption is more efficient when the boron concentration in the source is very low. For effluent streams with a high boron concentration or with a complex constitution, coagulation …
Agriculture – removing boron from water to make it suitable for irrigating sensitive crops; Mining Water – removal of boron to allow safe water discharge; Industrial Water – elimination of boron from process water or wastewater to enable reuse or discharge; Sea Water Desalination – post treatment of sea water reverse osmosis (RO) permeate to …
Bick et al. used the analytic hierarchy process (AHP) model to select the optimal boron removal methods. According to the analysis of Hasse diagram technique, the two stages of RO with permeate split were preferred and the use of ion-exchange in series could improve the performance of a single stage [72]. 3.3. Electrocoagulation …
There are potentially two times more amine sites than boron complexes, if the resin is completely boron-saturated. According to Rohm and Haas (1997), the selectivity for boron is very high: the theoretical retention capacity reaches 5 to 7 mg/l, but the practical capacity depends on flow rate and drops rapidly as flow rate increases due to mass …
In order to strengthen B removal during purification of Si with Al–Si solvent, small amounts (<1100 ppma) of transition metals (Hf, Zr, Ti, and Nb) were employed as additives because of their strong affinity for B.The results showed that the B removal process can be significantly improved by adding small amounts of Hf, Zr, and Ti and that …
The boron removal from metallurgical grade silicon (MG-Si) was studied using a K2 CO 3-CaO-SiO2 molten slag refining technique. The variation trend of boron concentration in the refined MG-Si was obtained experimentally under different content of K2 CO 3 in a ternary slag and under different refining times. The results showed that the …
This Engineering Bulletin reviews the properties of Purolite S108 macroporous polystyrene based resin for removing boron from aqueous solutions such as drinking water, irrigation …
Typical Boron removal rates at pH 8 are between 73 and 90% for standard High Rejection Seawater Reverse Osmosis membranes, depending on the water temperature. Special High Boron Removal membrane can …
Boron pollution of water is a severe environmental challenge. Elimination of boron from water is difficult and can inhibitive be costly and infeasible. Techniques used for boron elimination in the past few decades and present include boron exploitation (Kabay et al., 2010), adsorption (Ahmadi et al., 2020; Guan et al., 2016),
Missaoui et al. [19] insured that multiple electrodes remove boron more efficiently due to significant aluminum dissolution. 45% and 60% of boron removal were reached for one and two pairs of electrodes, respectively, for saline synthetic solution containing 5 mg L −1 at pH 8 and after 60 min as electrolysis time.
Boron Removal from Water. There are four different solutions to treating boron removal depending on the water source and amount of contaminant present. levels of boron should be treated with a reverse osmosis …
It takes energy to ionize any atom. It takes progressively more and more energy for each successive electron that is removed and the increase is somewhat smooth. For the removal of which electron does boron exhibit a sudden marked increase in its ionization energy? second electron 6:01 third electron fourth electron ok fifth electron
The removal of boron by Donnan dialysis was studied in this work. First, a preliminary study was conducted to determine the experimental field of operating parameters using two membranes (AFN and ...
To further assess the resistance of electron and ion transport, the EIS experiments were conducted. Fig. 1 (c) displays the Nyquist plot of EIS response from 10 −3 to 10 5 Hz. Accordingly, the electrodes showed the series resistance (R s) of 1.56 ohm and charge transfer resistance (R ct) of 30.8 ohm.A nearly vertical line at a low …
Boron is excreted mainly in the urine, and small amounts are excreted in the feces, sweat, breath, and bile [9,10]. Boron status is not routinely measured in clinical practice. Most studies suggest that urinary boron levels correlate with boron intakes [2,4,16,17].
Boron Removal From Potable Water ProSelect Boron/Borate can be used to remove boron from potable waters of any type. Its selectivity for boron is so high that the concentration of common bulk ions — such as chloride, sulfate, and bicarbonate — are unimportant. ProSelect Boron/Borate is kinetically limited and cannot be operated at a …
Boron removal by MgAlCe LDH has been examined at different boric acid concentrations ranging from 20 mg L −1 to 200 mg L −1 (Zhang et al., 2020). As shown in Fig. 4 a, the adsorption capacity followed an increasing trend as the initial boric acid concentration increased. The efficiency did not change after the adsorbent reached …
AmberLite™ PWA10 Ion Exchange Resin is a unique drinking water grade, macroporous resin designed for the removal of boron from drinking water. The resin can be …
Boron Removal from Ultrapure Water by Boron Selective Ion Exchange. Boron selective ion exchange resin has been available for many years. To date, the only commercial use of this resin has been removal of boron from saturated brine.
The numerous oxidation states of the element boron bring great challenges in containing its contamination in receptor bodies. This scenario increases significantly due to the widespread use of boron compounds in various industries in recent years. For this reason, the removal of this contaminant is receiving worldwide attention. Although …
When selective removal of boron is needed in high-purity applications in the microelectronics industry, it is recommended to use UltraCleanTM UCW1080. Operating Recommendations The product is retained within a pressure vessel, and the contaminated solution is pumped through
Desalination plays a crucial role in addressing water scarcity and promoting sustainable development. However, the presence of high boron content in seawater poses a significant challenge. This study introduces a progressive freezing-melting method that effectively removes boron while desalinating seawater. The experimental results …
The effect of the sorbent dosage on boron removal was performed in order to select the best conditions for the process. Experiments were carried out at two different boron concentrations: 5 mg L −1 and 25 mg L −1 (Figure 3a,b, respectively). These low concentrations were chosen to ensure the presence of monomeric species of boron.
Effect of boron on iron removal and the feasibility of formation of iron borides in Al melt were studied. The iron composition was not reduced by the addition of boron. ... If you have access to journal content via a personal subscription, university, library, employer or society, select from the options below: Sage Journals profile.