Characterization and application of the solid waste generated in the production of calcium carbonate precipitate as a corrective for the soil acidity

The calcium carbonate industry generates solid waste products which, because of their high alkaline content (CaO, CaCO(3) and Ca (OH)(2)), have a substantial impact on the environment. The objectives of this study are to characterize and classify the solid waste products, which are generated during the hydration process of the calcium carbonate industry, according to ABNT`s NBR 10.000 series, and to determine the potential and efficiency of using these solid residues to correct soil acidity. Initially, the studied residue was submitted to gross mass, leaching, solubility, pH. X-ray Diffractometry, Inductive Coupled Plasma - Atomic Emission Spectrometry (ICP-AES), granularity and humidity analyses. The potential and efficiency of the residue for correcting soil acidity was determined by analysis of the quality attributes for soil correctives (PN, PRNT, Ca and Mg contents, granularity). Consequently, the results show that the studied residue may be used as a soil acidity corrective, considering that a typical corrective compound is recommended for each different type of soil. Additionally, the product must be further treated (dried and ground) to suit the specific requirements of the consumer market.

Modelling of the kinetics of municipal solid waste composting in full-scale mechanical-biological treatment plants

A thesis submitted in fulfilment of the requirements for the Degree of Doctor of Philosophy in Sanitary Engineering in the Faculty of Sciences and Technology of the New University of Lisbon

Butler County Solid Waste Commission, Independent Auditor's Reports, Financial Statement, Schedule of Findings, June 30, 2004

Other Audit Reports - Butler County Solid Waste Commission

Shelby County Area Solid Waste Agency, Independent Auditor's Reports, Financial Statements and Required Supplementary Information, Schedule of Findings, June 30, 2004

Other Audit Reports - 28E Organizations

Crawford County Area Solid Waste Agency Commission, Independent Auditor's Reports, Financial Statements and Required Supplementary Information, Schedule of Findings, June 30, 2004

Other Audit Reports - 28E Organizations

Pocahontas County Solid Waste Commission, Independent Auditor's Reports, Financial Statements and Required Supplementary Information, Schedule of Findings, June 30, 2004

Other Audit Reports - 28E Oraganizations

Hardin County Sanitary Solid Waste Commission, Independent Auditor's Reports, Basic Financial Statements and Required Supplementary Information, Schedule of Findings, June 30, 2004

Other Audit Reports - 28E Organizations

Jones County Solid Waste Management Commission, Independent Auditor's Reports, Basic Financial Statements and Required Supplementary Information, Schedule of Findings, June 30, 2004

Other Audit Reports - 28E Organizations

Prairie Solid Waste Agency, Independent Auditor's Reports, Financial Statements and Required Supplementary Information, Schedule of Findings, June 30, 2004

Other Audit Reports - 28E Organizations

Wayne-Ringgold-Decatur County Solid Waste Management Commission, Independent Auditor's Reports, Financial Statements and Required Supplementary Information, Schedule of Findings, June 30, 2004

Other Audit Reports - 28E Organizations

Pocahontas County Solid Waste Commission, Independent Auditor's Reports, Financial Statement and Required Supplementary Information, Schedule of Findings, June 30, 2005

Other Audit Reports - 28E Organizations

Butler County Solid Waste Commission, Independent Auditor's Reports, Financial Statement and Required Supplementary Information, Schedule of Findings, June 30, 2005

Other Audit Reports - 28E Organizations

Jones County Solid Waste Management Commission, Independent Auditor's Reports, Basic Financial Statements and Required Supplementary Information, Schedule of Findings, June 30, 2005

Other Audit Reports - 28E Organizations

Shelby County Area Solid Waste Agency, Independent Auditor's Reports, Financial Statement and Required Supplementary Information, Schedule of Findings, June 30, 2005

Other Audit Reports - 28E Organizations

Crawford County Area Solid Waste Agency Commission, Independent Auditor's Reports, Financial Statement and Required Supplementary Information, Schedule of Findings, June 30, 2005

Other Audit Reports - 28E Organizations