Oily sludge is a major oily waste originating from the oil refining industry production process. It is very difficult to handle and may harm portions (i.e., ecosystems and human health) of the environment. Oil and gas may be separated from oily sludge and economically recovered by pyrolysis technology. However, the by-product residue of pyrolysis would likely contribute to secondary pollution if a disposal method was not competent. A novel nano-adsorbent, NMA-12, was developed by synthesization between a supermolecule compound and an oily sludge pyrolysis residue with participation from chemically modified nanometer materials. Static adsorption and desorption kinetic characteristics of the adsorbent (NMA-12) were studied with Congo Red as the test adsorbate. Results suggest adsorption equilibrium time was approximately 150 minutes and that the apparent adsorption rate constant of Congo Red was k298 = 0.02 s–1. Desorption volume of Congo Red at the same time was greater in stripping liquid where it reached 80.7% versus in pure water. This research was devoted to finding a feasible technology for treatment of oily sludge pyrolysis residues as a means of resource recycling.
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