Preparation of Bamboo Chars and Bamboo Activated Carbons to Remove Color and COD from Ink Wastewater

Abstract

Bamboo chars and bamboo activated carbons prepared by steam activation were applied for ink wastewater treatment. Bamboo char at 800 °C was the best for the removal of color and chemical oxygen demand (COD) from ink wastewater compared to bamboo chars at 300 to 700 °C due to higher surface area and mesopore volume. Bamboo activated carbon at 600 °C (S600) was the best compared to bamboo activated carbon at 800 °C (S800), although S800 had larger surface area (1108 m(2)/g) than S600 (734 m(2)/g). S600 had higher mesopore volume (0.20 cm(3)/g) than S800 (0.16 cm(3)/g) and therefore achieved higher color and COD removal. All bamboo activated carbons showed higher color and COD removal efficiency than commercial activated carbon. In addition, S600 had the superior adsorption capacity for methylene blue (0.89 mmol/g). Therefore, bamboo is a suitable material to prepare adsorbents for removal of organic pollutants.

The application of homemade Neosinocalamus affinis AC in electrokinetic removal technology on heavy metal removal from the MSWI fly ash

“…Pb was slightly complicated, it seemed the adsorption capacity of Pb was sensitive to impregnation ratio, but the minimal value also appeared at the ratio of 1.5. This may due to the fact that, when the impregnation ratio was relatively low, the impregnation of raw materials by phosphoric acid is not sufficient, the specific surface area and pore volume was small, the adsorption capacity of HMs was week, the specific surface area and the adsorption capacity of HMs increased with the increase of impregnation ratio in the first phase323435. But superfluous activator could prevent the shrinkage of raw materials, which will cause the reduction of the special area and the diminution of the adsorption capacity.…”

Synthesis of the magnetic core–shell bi‐metallic and tri‐metallic metal–organic framework nanocomposites for dye adsorption

“…For qualitative investigation of functional groups, the FTIR spectra were recorded in the range of 4,000–400 cm −1 as plotted in Figure 2. The peaks appearing at 3,380 and 576 cm −1 can be attributed to the moisture content or –OH group for all samples (Hata et al, 2016; Mahmoud et al, 2017; Shah et al, 2015) and the stretching vibration of Fe‐O, respectively (Chowdhuri et al, 2016; Li et al, 2017). For MAC, the bands at 1,695 and 1,520 cm −1 are ascribed to C=O and the vibration mode of oxygen atoms, respectively (Li, Du, et al, 2013; Lin et al, 2014; Petit & Bandosz, 2012).…”

Treatment of artificial secondary effluent for effective nitrogen removal using a combination of corncob carbon source and bamboo charcoal filter

“…Bamboo charcoal, an environmentally friendly and inexpensive biosorbent (Zhou et al, 2015b), is a strong adsorbent of ammonium. Other research has shown bamboo charcoal to have higher COD removal efficiency than commercial activated carbon (Hata et al, 2016).…”