Pyrolysis of agricultural/forestry processed wastes (AFPW) is one approach that has been investigated to develop materials into products of higher value. This paper describes a concept of multi-utilization with pyrolysis under various conditions which has been extensively prepared for related bio-functional materials like biochar, charcoal and activated carbon (AC). The prepared materials were ...

In this work author presented the up-to-date development on the various non-conventional low cost biomass adsorbent for the removal of inorganic/organic pollutants from aqueous solution. Author also presented the adsorptive properties of various agricultural by-products such as rambai tree leaves in the removal of Hg (II), castor hull in Zn (II) and Cd (II) removal, physic seed in heavy metal i...

Sesame leaf and stem, as a kind of useless agricultural waste, was used as a sort of low-cost biosorbent for the removal of cadmium ions from aqueous solutions in batch and continuous modes. The biomass was characterized by Fourier transform infrared spectroscopy, scanning electron microscope and energy-dispersive X-ray analysis before and after adsorption. There were hydroxyl group, carboxyl g...

The adsorption of Mn(II) and Co(II) ions from aqueous solution was investigated using batch adsorption experiment at room temperature. The effect of pH, contact time, metal ion concentration and temperature were evaluated. The residual concentrations of the metal ions were determined by atomic absorption spectrophotometer. The results showed that maximum removal of Mn(II) and Co(II) ions occurr...

Palm kernel fibre is a common agricultural waste in West Africa and its use as an adsorbent for the removal of copper ions from aqueous solution has been studied. Batch kinetics studies were carried out based on the assumption of the pseudo-second-order kinetic model, which was developed to predict the rate constant of adsorption, the equilibrium adsorption capacity and initial adsorption rate ...

Activated carbon is an adsorbent in the separation and purification industries. The adsorption capacity of activated carbon depends on porosity and its surface chemistry. In this review the production of activation carbon from a large number of abundant and low-cost materials and agricultural waste such as Camellia oleifera shell, bamboo, cherry stones, waste tea, and Paulownia flower are discu...

Activated carbon was prepared from agricultural waste “almond (Prunus amygdalus) nut shells” by chemical activation with phosphoric acid as an activating agent at 450 C for 24 hr soaking time. The physical and chemical properties were analyzed. The adsorption of chromium VI from aqueous solution on almond nut shell activated carbon (ASAC) was investigated. The adsorption process parameters pH, ...

an agricultural waste i.e. rice husk has been used as a cheap adsorbent for the removal ofleadas a harmful heavy metal from contaminated water via adsorption. the adsorption capacity of rice husk was calculated by equilibrium models. the results showed that the adsorption process has the best accordance with langmuir model. the kinetics of the adsorption was also investigated and obtained that ...

An agricultural waste i.e. rice husk has been used as a cheap adsorbent for the removal ofleadas a harmful heavy metal from contaminated water via adsorption. The adsorption capacity of rice husk was calculated by equilibrium models. The results showed that the adsorption process has the best accordance with Langmuir model. The kinetics of the adsorption was also investigated and obtained that ...

Indonesia as an agricultural country, produces products and their waste. To increase the utilization of waste, hence Palm Oil Mill Boiler Ash processed into adsorbent. This research aimed to determine effect contact time on quality adsorption process crude palm oil using adsorbent from Ash. The results showed that optimum at 60 minutes resulted in largest reduction free fatty acids by 2.99% wit...