Coal-based adsorbents for water and wastewater treatment
T1 - Coal-based adsorbents for water and wastewater treatment. AU - Simate, Geoffrey S. AU - Maledi, N. AU - Ochieng, Aoyi. AU - Ndlovu, S. AU - Zhang, Jun. AU - Walubita, Lubinda F. PY - 2016. Y1 - 2016. N2 - Coal, just like other fossil fuels such as oil and natural gas, is mainly used as a non-renewable source of energy.
The recent research interest in low-cost alternatives to activated carbon for waste and wastewater treatment is reviewed. An examination of the selection criteria and activation methods for the preparation of active carbon is followed by a critical assessment of low-cost adsorbents prepared from carbonaceous industrial wastes, agricultural by-products and mineral-derived sources.
Coal-based adsorbents for water and wastewater treatment
This review explores the use of coal, not as an energy source used for generating electricity, but as a low cost adsorbent in water and wastewater treatment processes. In fact, today, coal-based adsorbents still attract considerable interest in their usage. The review critically analyses the chemical composition, ion-exchange and sorption
Coal-based adsorbents for water and wastewater treatment Article in Journal of Environmental Chemical Engineering 4(2):2291-2312 · June 2016 with 406 Reads How we measure 'reads'
Recent advancements in graphene adsorbents for wastewater
Wastewater contains not only organic and inorganic pollutants but also a variety of harmful microorganisms. Most of the graphene adsorbents reviewed in the literature, merely tested for eliminating organic and inorganic pollutants except few, which ultimately hindered their commercial application considering the economic aspects.
Nanoscale materials for the treatment of water contaminated by bacteria and viruses. 2025,,, 261-305. DOI: 10.1016/B978-0-12-819355-6.00009-1. Maryam Shojaipour, Mousa Ghaemy, Seyed Mojtaba Amininasab. Removal of NO3− ions from water using bioadsorbent based on gum tragacanth carbohydrate biopolymer. Carbohydrate Polymers 2025, 227, 115367
Coal Ash Pond Water Treatment: Technology Options
An experienced wastewater treatment team can engineer and price a solution including an initial desktop study to treat coal ash pond water to meet project objectives and identify risks. An exemplary end-to-end treatment train is presented below for the removal of pollutants of organics, inorganics and suspended solids.
The removal of selenium from aqueous medium is complex and expensive, because of the high wastewater volumes generated, low discharge limits (even in μg/L) and the presence of Se(IV) and Se(VI) species (Santos et al. 2015).As regulatory limits are becoming stricter, selenium removal from wastewater has become more and more challenging.
Adsorption Separation of Analgesic Pharmaceuticals
2.3. Aqueous Matrices for Adsorption Experiments. In this work, adsorption experiments were first carried out in ultrapure water (conductivity = 55 μS·cm −1, resistivity = 18.18 MΩ.cm and pH = 6.9 at 25 °C), which was sourced by a Milli-Q purification system.Then, aiming to assess the possible utilisation of the considered adsorbents in tertiary waste water treatment, experiments on the
Layered double hydroxide( LDH) and layered metal oxides( LDO) were prepared using red mud as the raw material by the roasting-reduction-reconstruction method. The adsorption effects of the reactive yellow KE-4R dye( KE-4R) and the reactive brilliant blue dye
Removal of Hazardous Oxyanions from the Environment Using
Due to the need to develop alternative and cost-effective adsorbents, Irawan et al. decided to test aluminum-based water treatment residuals (Al-WTRs) in boron removal. Al-WTRs consist mainly of aluminum, iron, and silica oxides with some organic compounds and they are generated from drinking water treatment facilities.
N.A. Oladoja, Headway on natural polymeric coagulants in water and wastewater treatment operations, J. Water Process. Eng., 6 (2015) 174–192. A. Mishra, M. Bajpai, The flocculation performance of Tamarindus mucilage in relation to removal of vat and direct dyes, Bioresour. Technol., 97 (2006) 1055–1059.
- How does polyacrylamide gel form?
- The polyacrylamide gel forms by polymerizing acrylamide and a crosslinking agent, i.e., N, N’-methylene-bis-acrylamide. It does not react with proteins and consists of pores and channels that allow the protein to move through it.
- How to make polyacrylamide solution?
- In a 50-ml glass bottle, mix acrylamide, H 2 O, TEMED, and 10% APS according to the recipe in Table 1 . Table 1. CAUTION: The linear polyacrylamide solution can be made as inert or activated with the capability of binding adhesive proteins.
- What is the composition of polyacrylamide gels?
- The composition of polyacrylamide gels is generally expressed in terms of T (the total acrylamide and Bis monomer concentration in g/100 ml) and C (the percentage of cross-linker in the total amount of acrylamide).
- What is cationic polyacrylamide (CPAM)?
- J. Pharm. Biopharm.54 (2002) 41–50. 10.1016/S0939-6411 (02)00036-X Search in Google Scholar Cationic polyacrylamide (CPAM) was prepared in aqueous solution by free radical polymerization of methacryloyloxy ethyl trimethylammonium chloride (DMC) and acrylamide (AM). A redox initiator system was used.
