Experimental Investigation on Utilizing Treated Dyeing Effluent in Utility Blocks

Utility blocks are most popular in construction due to their competent manufacturing and cost-effectiveness. However, traditional production methods require large amounts of potable water, which can create challenges in ensuring enough water for other construction needs. To address this, a novel approach has been developed that substitute treated dyeing industrial wastewater for potable water in the manufacturing of utility blocks. This method incorporates a bio-sorption process through a coagulation-sedimentation technique, using dry powdered ricinus as natural coagulants. Utility blocks were tested in compliance with IS 15658 standards. The mechanical properties of both conventional and effluent imbibed blocks were tested. The durability of both blocks was assessed by chloride penetration test. Empirical regression analysis was conducted to assess the compression and flexural strengths of blocks. The results from curing periods of 7, 14, and 28 days showed improvements in the strength. The modified blocks demonstrated increases in compressive strength of 1.76%, 2.01%, and 2.41% than conventional blocks. Flexural strengths also exhibited improvements, with increases of 14.8%, 13.62%, and 8.45% across the same curing periods.