Biochars were prepared via the pyrolysis of sewage sludge at temperatures ranging from 350–550 °C. The properties and behaviors heavy metals in biochars investigated. results indicated that pH values ash contents increased, while biochar yield C, H, N decreased with increasing temperature. A high temperature contributed to a developed pore structure. specific surface area volume average width d...

ncorporating Ni-laden waste sludge into kaolinite-based construction ceramic materials appears promising based on the identified nickel bearing hases, evaluated incorporation efficiency and nickel leachability of the products. Nickel aluminate spinel (NiAl2O4) results from sintering kaolinite nd nickel oxide between 990 and 1480 ◦C, with more than 90% incorporation efficiency achieved at 1250 ◦...

Because prompt intervention may prevent complications, early diagnosis is important in many inherited metabolic diseases. Early diagnosis of Severe Combined Immunodeficiency (SCID) is critical - because chances for successful treatment are highest for infants who have not yet experienced severe opportunistic infections. SCID is a rare disease that can be detected in newborn infants (i.e., those...

A dispersive solid-phase microextraction (DSPME) sorbent consisting of poly(1,6-hexanediol diacrylate)-based polymer microspheres, with embedded graphene microparticles (poly(HDDA)/graphene), was synthesized by microfluidic emulsification/photopolymerization and characterized optical microscopy X-ray fluorescence spectrometry. This applied for simple, fast, sensitive vortex-assisted DSPME rare ...

Speciation of copper in the incineration waste heat boiler (HB) and the down stream electrostatic precipitator (EP) fly ashes during the flue gas cooling down (1123-->473 K) has been studied by X-ray absorption near edge structural (XANES) spectroscopy in the present work. Copper species such as Cu(OH)(2) (59-67%), CuCl(2) (5-12%), CuO (24-26%), and a small amount of CuS (3-4%) in fly ashes wer...

This work proposes a scheme for completely treating heavy metal laboratory waste liquid. Ten common heavy metals and various anions were dopted to synthesize the simulated laboratory waste liquid. Experimental results demonstrated that although conventional ferrite process (FP) ould not be used to treat the simulated waste liquid completely, the enhanced FP, i.e., the extended reaction ferrite ...

Municipal solid waste incineration fly ash is generated in a significant amount; it is classified as hazardous waste in Taiwan. In order to reduce the volume of treated fly ash, a sintering technology can be considered. However, a traditional sintering consumes too much energy because of the limit of heat transfer. Hence, a microwave process which can provide quick, uniform, and selective heati...

Eddie Schwalb2 and Llu s Vila3 Abstract. We aim at developing a logic-based representation language which supports an explicit representation of time and temporal constraints such as \the task t takes from 3 to 4 hours", \the resource r is available from 8:00 to 11:00 and from 13:00 to 14:00" and \task ti cannot overlap task tj". In this paper we discuss the issues to address and we propose TCL...

Bricks manufactured from dried sludge collected from an industrial wastewater treatment plant were investigated. Results of tests indicated that the sludge proportion and the firing temperature were the two key factors determining the brick quality. Increasing the sludge content results in a decrease of brick shrinkage, water absorption, and compressive strength. Results also showed that the br...

The problem of spent fluid catalytic cracking (SFCC) catalyst resource utilization, draws more and attention to system analysis. SFCC was leached in an oxalic solution for comprehensive utilization. results showed that a D50 ≤ 17.34 μm, the 240 min at 95 °C presence 2 mol/L acid solution, extent leaching V, Ni, Fe, Al 73.4%, 32.4%, 48.2%, 36.8%, respectively. Studies on occurrence state main io...