Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering) - Volume 7, Issue 1, 2015

In this review paper, recent research and developments studies dealing with the bioconversion of bioresources and biowastes into biogas will be studied and discussed. Several kinds of natural feedstocks were analysed for their aptitude to produce gaseous biofuels such as woods, grasses, algae, agricultural residues, industrial by-products and household wastes. The related research studies revealed promising production yi Read More

Lead ion is a well-known divalent metal ion because of its harm to the human body, and fluorescent tracer technique has been proven to be the most appropriate means to detect lead ion in human body. Many fluorescent probes have been proposed, and some have been applied successfully in lead detection. This paper reviews recent patents and research articles focusing on the design strategy of lead probe based on the m Read More

Oily wastewater is waste originating from industries primarily engaged in refining crude oil and manufacturing fuels, lubricants and petrochemical intermediates. In this review, the characteristics and environmental impacts of oily wastewater were introduced. Methods for oily wastewater treatment were summarized based on recent literature and patents. Finally, this paper prospected the development trend of oily waste Read More

The normal production of oil fields was seriously affected by the mineral scale formation, especially calcium deposition. This paper focused on the types, mechanisms and influencing factors of common scales oilfield scaling, especially carbonate scale and sulfate scale. Besides, some prediction models which were widely practiced in the oilfield to determine the scaling tendency of oilfield brine were described. The development a Read More

Surface-modified activated carbon fibers (ACFs) with nitrogen-containing groups were prepared by the heat treatment of ACFs with urea, and characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and thermogravimetry (TG). The removal activity of the samples was also tested at an SO2 concentration of 22800 mg/Nm3. The results showed that the surface-modified ACFs significantly Read More

The solid fuel combustion in the thermal power plants, which use sulfur-rich fuels, poses the problem of sulfur dioxide removal from the waste gases. This problem is complicated by the fact, that it is required to purify huge amounts of gas with low SO2 concentration. The huge gas amounts need big size apparatuses, which is possible to be decreased if the absorption rate is maximal. The theoretical analysis of the methods a Read More

Sequencing batch reactor (SBR) is a type of activated sludge treatment, in which the aeration and clarifying step take place in a single reactor. There are several literatures and patents that have investigated the ability of SBR in wastewater treatment. In this study, the short-time effects of operative parameters, including influent COD, COD/N ratio, COD/P ratio, aeration time, settling time, temperature, and the memory of r Read More