Globally agricultural production systems generate large amounts of solid wastes. One of major causes of environmental pollution is agri-plant waste, which is not properly disposed. As a result, pollution problems and its impact on human health increase. Hence, there is a need to get rid of them through chemistry intervention and convert them into energy in an environmentally friendly way. Therefore this study aimed to shed light on this vital topic in an attempt to analyze agri-waste, and identify their environmental impacts. Analytical chemistry is key to achieving this goal. Detailed elemental analyses Na, K, Ca, P, Mg, Sr, Fe, Mn, Ni, Co, Cr, Cu, Se, Zn, As, Pb, Hg, and Cd, moisture content, ash content, volatile matter, and calculated fixed were performed. Rapid analytical methodologies such as microwave digestion, and ICP-MS were used. The findings of this investigation showed that the levels of elements in the plants under study were higher than the lower limit allowed by the FAO. In addition to the level of moisture, ash, and volatile matter, as well as the level of elements were in parallel allowing them to act as catalysts Ca, and K when converting waste to energy through thermochemical. In addition to the level of toxic element as with the present Ni release compound, it is suggested that the study results are more environmentally friendly.