Characterization of waste. Sampling of waste materials

2006 ◽  
Keyword(s):  
Waste Materials

scholarly journals Physio-Chemical Characterization of Indigenous Agricultural Waste Materials for the Development of Potting Media

2021 ◽  
Author(s):  
Sidra Kiran ◽  
Javed Iqbal ◽  
Subhan Danish ◽  
Allah Baksh ◽  
Syed Inam Ullah Shah Bukhari ◽  
...  
Keyword(s):  
Agricultural Waste ◽  
Chemical Characterization ◽  
Waste Materials ◽  
Potting Media

scholarly journals GREEN SYNTHESIS AND SPECTROSCOPIC CHARACTERIZATION OF IRON (III) COMPLEX OF UREA FROM HUMAN URINE AND IRON RUST

2020 ◽  
Vol 45 (5) ◽  
Author(s):  
V.O. Uduah ◽  
J.J. Gongden ◽  
M.L. Kagoro ◽  
K.K. Gurumyen ◽  
Y.N. Lohdip ◽  
...  
Keyword(s):  
Human Urine ◽  
Synthesis Method ◽  
Reaction Medium ◽  
Spectroscopic Characterization ◽  
Waste Materials ◽  
Spectroscopic Techniques ◽  
Distilled Water ◽  
Oxide Composition ◽  
Ft Ir

This work presents a dry synthesis of Iron (III) complex with urea isolated from human urine and Fe (III) obtained from iron rust particles. Iron (III), PI (Purified iron rust), was isolated from iron rust in 10% hydrochloric acid, HCl and distilled water respectively. The complex was synthesized via dry-synthesis method using the melted urea as reaction medium. The isolated Fe (III) was characterized by elemental analysis which was done using XRF Cu-Zn method. The complex was prepared in a 1:4 metal to ligand (M-L) ratio. The stoichiometry of reaction indicate a 1:3 ratio of M-L (Fe-U). The complex was characterized by FT-IR, UV-vis, XRF and XRD spectroscopic techniques. The Fe (III) isolate and Fe-U complex shows percentage yields of 35.7% and ~92% respectively. The elemental and oxide composition of Fe and Fe2O3 (i.e., PI) were 40.387% and 57.753% respectively. The results obtained from the characterization of the iron-urea complex, IUC, indicate FT-IR result as symmetric and asymmetric frequencies with peaks of a combination band of Vs (NH) and Vas (NH), C=O and V (C-N) all stretched, XRD showed the crystal to be amorphous. The elemental and oxide composition of the Fe and Fe2O3 in IUC were 40.007 and 44.201 respectively. The results obtained revealed that useful complexes can be synthesized easily from waste materials, such as urine and iron rust particles, which complement Green chemistry.

Characterization of polypropylene–polyethylene blends made of waste materials with compatibilizer and nano-filler

2013 ◽  
Vol 55 ◽  
pp. 498-505 ◽  
Author(s):  
Changing Fang ◽  
Long Nie ◽  
Shaolong Liu ◽  
Ruien Yu ◽  
Ningli An ◽  
...  
Keyword(s):  
Waste Materials ◽  
Polyethylene Blends

Isolation and characterization of predominant microorganisms during decomposition of waste materials in a field-scale composter

2003 ◽  
Vol 95 (4) ◽  
pp. 368-373 ◽  
Author(s):  
Mannix S Pedro ◽  
Shin Haruta ◽  
Kohei Nakamura ◽  
Masaru Hazaka ◽  
Masaharu Ishii ◽  
...  
Keyword(s):  
Waste Materials ◽  
Field Scale ◽  
Isolation And Characterization

Extraction and Characterization of Silica Powders from Natural Waste for Environmental Remediation

2018 ◽  
Vol 934 ◽  
pp. 147-153
Author(s):  
Areeya Ti-Iatyor ◽  
Thawatchai Kongkue ◽  
Tawat Chanadee
Keyword(s):  
Environmental Remediation ◽  
Sodium Hydroxide Solution ◽  
Sodium Silicate Solution ◽  
Silicate Solution ◽  
Waste Materials ◽  
Ft Ir ◽  
Groundnut Shell ◽  
Banana Leaves ◽  
Groundnut Shell Ash

The present work describes the preparation and characterization of silica powder from the natural waste materials stink bean pod, Barbados pride pod, banana leaves, coconut shell, sugar palm shell and groundnut shell. Ash was produced by incineration of the natural wastes at 650 °C for 1, 3 and 5 h in atmospheric air. Silica was then extracted from the natural waste ash using 1 M sodium hydroxide solution to produce a sodium silicate solution from which silica was precipitated by adding 5 M hydrochloric acid solution. The results showed that the low content of residual carbon from the natural waste was incinerated at the optimal condition of 650°C for 5 h. FT-IR indicated that the as-prepared silica had Si-O-Si and Si-OH functional groups consistent with the XRF analysis, which detected SiO2 content between 73.76 and 95.72 wt%. In analysis of XRD and SEM, the as-prepared silica exhibited an amorphous, irregular shape and particle sizes in a range from 1 to 2 μm. The results obtained by the reported method proved that natural waste materials can be used for the production of valuable silica.

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