one of the main disadvantages of anaerobic wastewater treatment at a low ph is the significantoperational cost due to the addition of necessary alkali. to reduce alkali supplement and thus the cost, thisstudy proposes a sequential multi-feed (sqmf) mode (distributed feeding) and effluent recycle (er) mode.experiments were conducted with a pilot-scale (2.5 m3) thermophilic (55°c) multi-staged up...

one of the main disadvantages of anaerobic wastewater treatment at a low ph is the significantoperational cost due to the addition of necessary alkali. to reduce alkali supplement and thus the cost, thisstudy proposes a sequential multi-feed (sqmf) mode (distributed feeding) and effluent recycle (er) mode.experiments were conducted with a pilot-scale (2.5 m3) thermophilic (55°c) multi-staged up...

The on-board partial dehydrogenation of gasoline to generate hydrogen sufficient purity feed a fuel cell directly requires catalysts producing high at rate, while also preserving the defining density and boiling point properties allow its recycle tank. Here, >98% is produced by catalytic SP95E10 (containing 10% ethanol) with productivity 2300 NL·h−1·kgcat−1 using Pt–Sn–In/alumina catalyst prepa...

Kemampuan aluminium yang dapat di recycle (daur ulang) menjadikan sebagai salah satu material dikembangkan untuk menggantikan penggunaan primer. Keterbatasan ketersediaan dunia karena penggunaannya terus meningkat scrap pilihan mengurangi produksi primer (bauksit). Penggunaan komponen mesin menjadi alternatif keberlangsungan (sustainable) industri kedepannya, satunya adalah piston. Proses dilak...

A rate-based simulation method is developed with the correlation for mass transfer rate, which was obtained in our experiments of the homogeneous and heterogeneous ternary distillation with a sieve tray column. The simulation method is applied to the process of ethanol dehydration with benzene, which consists of a dehydrationand an entrainer recovery column. In the simulation study, the effect ...

This paper presents a continuous-time mathematical formulation for freshwater and wastewater minimisation in multipurpose batch plants with and without a central reusable water storage facility. The minimisation of wastewater is achieved through the exploitation of recycle and reuse opportunities. A superstructure that entails all the possible recycle and reuse possibilities is used as the basi...

The Mitsunobu reaction is renowned for its mild reaction conditions and broad substrate tolerance, but has limited utility in process chemistry and industrial applications due to poor atom economy and the generation of stoichiometric phosphine oxide and hydrazine by-products that complicate purification. A catalytic Mitsunobu reaction using innocuous reagents to recycle these by-products would ...

Extent-based representation is a powerful tool for reaction systems since it decouples the related dynamics and inlet flow dynamics. However assumes that composition exactly known. In this paper, we present design of an estimation procedure to partially reconstruct approximate matrix based on extent process. This especially necessary when process have recycles streams or contains traces other s...