Document Type
Thesis
Date of Award
5-31-1991
Degree Name
Master of Science in Civil Engineering - (M.S.)
Department
Civil and Environmental Engineering
First Advisor
Dorairaja Raghu
Second Advisor
Hsin Neng Hsieh
Abstract
This study was performed to explore the possibility of using the sludge waste from the water treatment plant at Boonton New Jersey as a containment material for the sanitary landfills or as a fill material. At present natural clay is being used as a containment liner for the landfills and by using this sludge, recycling of a waste product will be achieved in an economical manner.
As a first part of this studies, efforts were made to utilize the liquid sludge having a solid content of about 3%. Attempts to dewater the liquid sludge to a workable mix by adding additives such as sorbond and lime were found to be not economical as large quantities of additives were required.As a second part of the studies, sludge cake having about 200% water content was utilized. Dewatering sludge cake by electro-osmosis was found to be unsuccessful. Addition of 30% sorbond by weight to the sludge cake and air drying for 4 days gave a workable mix for compaction purposes. Determination of hydraulic conductivity by consolidation tests and by flexible wall permeameter gave a value in the range of 3.0-4.4x10-8 cm/s.
Other tests to determine as to whether the sludge-sorbond mix meets the requirements set forth by the New Jersey Department of Environmental Protection for sanitary landfill liners were conducted. The results indicate that the sludge-sorbond mix can be compacted in the field provided the mix was allowed to dry for 4 days and that it can be used as sanitary landfill liner.
Recommended Citation
Sockanathan, Sinnadurai, "Water treatment plant sludge as sanitary landfill liner" (1991). Theses. 2627.
https://digitalcommons.njit.edu/theses/2627
