Recovery of Water from Wastewater by the Activated Carbon Adsorption Process

Magnetic adsorbents for the treatment of water/wastewater—A review

“…Discharge of industrial effluent, solid waste from households and industries etc., are responsible for the increasing levels of groundwater pollution. Hence to treat water, several techniques such as membrane separation process [2][3][4], coagulation and flocculation [5][6], filtration [7][8][9][10], adsorption [11][12][13][14][15][16], chemical treatment [17][18] have been developed.…”

Recovery of heterocyclic amines from dilute aqueous waste streams

“…Various treatment processes such as activated sludge process (Ceh and Chudoba, 1987;Cech and Chudoba, 1987;Gyunter et al, 1983) for morpholine, pyridine, and quinoline; activated carbon (Radeke, 1985;Nikolenko et al, 1986;Martin and Iwugo, 1982;Fox et al, 1988) for pyridine, picolines, and quinoline; cation-exchange resins (Kaczvinsky et al, 1983;Isaeva et al, 1977) and polymeric adsorbents (Deshmukh and Pangarkar, 1984;Stuber and Leenheer, 1983) for various amines have been reported in the literature. Activated sludge process is a widely used and inexpensive process, and it is particularly suited to wastewaters containing small amounts of organic solutes, typically below a few ppm.…”

“…Activated sludge process is a widely used and inexpensive process, and it is particularly suited to wastewaters containing small amounts of organic solutes, typically below a few ppm. It is reported in the literature that activated carbon loaded with pyridines, pyrazines, etc., is difficult to regenerate with organic solvents (Martin, 1980). It is reported in the literature that activated carbon loaded with pyridines, pyrazines, etc., is difficult to regenerate with organic solvents (Martin, 1980).…”

“…The recovery of heterocyclic amines from dilute aqueous solutions has received some attention. Heterocyclic amines are harmful pollutants that are present in effluents of several major industries, e.g., coking plants, rubber and agrochemical industries, petrochemical plants, dye and resin industries, as well as many organochemical industries. Various treatment processes such as activated sludge process (Ceh and Chudoba, 1987; Cech and Chudoba, 1987; Gyunter et al, 1983) for morpholine, pyridine, and quinoline; activated carbon (Radeke, 1985; Nikolenko et al, 1986;Martin and Iwugo, 1982;Fox et al, 1988) for pyridine, picolines, and quinoline; cation-exchange resins (Kaczvinsky et al, 1983;Isaeva et al, 1977) and polymeric adsorbents (Deshmukh and Pangarkar, 1984; Stuber and Leenheer, 1983) for various amines have been reported in the literature. Activated sludge process is a widely used and inexpensive process, and it is particularly suited to wastewaters containing small amounts of organic solutes, typically below a few ppm.…”