The diffusion-controlled storage process is predominant in the total capacitance, attributed to p–n V₂O₅/Ni₃S₂ heterojunctions.

This paper investigates the flocculation performance of polyglutamic acid-based bioflocculant PG.a21 Ca by processing kaolin suspension, studies effects on efficiency from amount flocculant, pH, temperature, hydraulic condition and etc. The results show that rate to 1 g/L suspension is 95.8% under 300 mg/L, pH 7, temperature 25 ºC, stirring speed mixing 350 r/min, time 50 s, reaction 80 4 min. Effects wastewater has better in treating domestic higher removal total phosphorus ammonia nitrogen...

Hoping to save money and reduce solid waste, water utilities are evaluating various alternatives for the disposal of clarifier sludge containing 30 50 percent hydrated aluminum hydroxide. In this work, authors studied a selective, simple‐to‐operate alum recovery process using composite membranes made fine particles chelating polymers entrapped in thin sheets porous polytetrafluoroethylene. Laboratory studies from Allentown (Pa.) Water Treatment Plant showed that can be recovered selectively...

The sorption of copper ions from aqueous solutions onto modified aluminum oxide was investigated as a function pH, solids concentration and both particulate dissolved organic matter. studied by adsorption humic acid. pH value, matter content, dominated oxide. increased with increasing pH. An increase in carbon resulted an enhanced uptake. partition coefficient (Kd) decreased the increased. Copper partitioning maximal neutral range at either low or high values. There also decrease concentration.

Abstract A method to blend starches and polyethylene, thus improve the environmental footprint, was investigated. Unlike traditional methods that utilize compatibilizers or rely on reactive extrusion achieve desired material compatibility, a high amylose starch, such as Gelose 80, mixed with native converted thermoplastic compounded Ecoflex polyethylene. Films showed good integrity were evaluated for mechanical properties, anaerobic biodegradability, structure changes both before after...

Polylactic acid (PLA) biodegradability is mostly claimed according to PLA biodegradation behaviour under aerobic composting conditions. However, waste materials containing are frequently disposed of in municipal landfills, which operated anaerobically. anaerobic sludge digestion results acquired elucidate effects the degrading temperature on biodegradation. When higher than glass transition ( T g ), accelerated. A plausible mechanism explain this observation that amorphous part polymer...

ABSTRACT Breathable films, which find in variety of product applications, are conventionally made using mineral porogens such as calcium carbonate (CaCO 3 ). This article addresses a novel biodegradable and highly breathable film without inorganic porogens. Unexpectedly, thermoplastic cross‐linked natural polymer (corn starch) was used successfully to create tortuous passages for breathability. concept demonstrated two types corn starches contrasted control samples: native chemically...

Abstract Melt extrusion of polyvinyl alcohol (PVOH) is desirable over commonly practiced solution film casting due to reduced energy input, environmental footprint, and processing cost, however, melt plasticized presents a significant challenge inherent adhension issues extruded PVOH the surface equipment. This paper reports method using inorganic fillers such as CaCO 3 talc facilitate for blown films. Parameters are also identified additional process studies optimize mechanical properties...

Abstract A soda lignin, Protobind 2400, was blended at ratios up to thirty weight percent with polyolefins or the aliphatic-aromatic copolyester Ecoflex and films were cast a twin-screw extruder. The mechanical properties, structure, optical properties of resultant characterized by tensile tests microscopy. Films for all blends this modified lignin successfully without operational issues. Film elongation maintained both Ecoflex. Lignin significantly increased modulus polyethylene but...

The utilization of bio-based renewable and sustainable materials for industrial application is pursued aggressively by multiple research entities manufacturing companies. Effective sequestration CO 2 sugarcane plantation as a first step, which then converted to green polyolefin, reduces greenhouse gases effect on global warming. This article addresses polyethylene composites functional films flexible packaging personal care product applications. composite films, obtained melt compounding...

Natural fiber-based paper and paperboard products are likely disposed of in municipal wastewater, composting, or landfill after an intended usage. However, there few studies reporting anaerobic sludge digestion biodegradability agricultural fibers although the soiled sanitary products, containing fibers, increasingly wastewater conventional treatment systems, which one more unit operations digestion. We conducted a series biodegradation using corn stalk wheat straw pulp to elucidate kinetics...