The increase in non-face-to-face lifestyles due to COVID-19 worldwide have shown an delivery services. number of parcels 2020 was 3.373 billion, 20.9% from 2.788 billion 2019. This phenomenon increased box waste. Against this background, study attempted develop building materials the recycling boxes. In study, self-developed WC (wet cellulose) 3D printer confirmed standardization and uniform pe...

Bacillus sp. ASX42 isolated from soil samples of Lake Van shores, Turkey, and the strain producing cellulose-free xylanase enzyme with an optimum pH 9.0, at 60ºC. The molecular weight was estimated as 66 kDa on SDS PAGE analysis. Thermal stability detected average 68.7% 4-60ºC 60% 65-95ºC while observed about 90% between 3.5-13.0 for 15 min. As HgCl2 presented a strong inhibitor activity, Cobal...

The release of soils and impurities from cellulosic surfaces plays a critical role in such processes as the laundering clothes deinking wastepaper pulps. This article reviews publications that provide evidence about factors affect mechanisms by which operate. In general, substrates advantages for contaminants due to their hydrophilic nature permeability, allowing transport surfactants contact i...

Moisture content is a quality issue raised by recycling plants in the acceptance of paper and cardboard coming from waste streams. The current way to measure this parameter oven drying method, which slow invasive process, costing time resources for recyclers do type control. An alternative such measurement technique use plate-form devices indirectly moisture using dielectric properties water pa...

White ledger is white-grade recycled pulp that replaces the bleached kraft pulp (BKP) that typically forms the top ply of duplex boards. However, sheets made from white ledger are inferior in strength compared with those made from virgin pulp. Therefore, it is necessary to select a proper additive in order to overcome the disadvantages of using white ledger. In this study, the physical properti...

this study was aimed to investigate the possibility of using magnesium hydroxide as an alternative for sodium hydroxide in deinking of newsprint and magazine mixture. the old newsprint and magazine mixture (onp/omg -70/30) was treated by magnesium hydroxide at three levels: 1, 1.5 and 2 percent (based on oven dried pulp weight), for 20 min. optical and mechanical properties and effluent cod loa...