Characterization of soluble organic matter of waste activated sludge before and after thermal pretreatment

Biogas Production of Ozone and/or Microwave-Pretreated Canned Maize Production Sludge

“…The intensive microwave heat generation and the different dielectric properties of compounds of the cell wall lead to a rapid disruption of extracellular polymer network and residue cells of sludge. However the cell liquor and extracellular organic matter within the polymeric network can release into the soluble phase, hereby increasing the ratio of accessible and biodegradable component (Eskicioglu et al, 2006).…”

Effect of organic matter on phosphorus recovery from sewage sludge subjected to microwave hybrid pretreatment

“…As a separation method, the UF exhibited high reliability, although the interception and adsorption of the organics may be affected by factors such as temperature, pH, ionic strength, molecular structure, and trans-membrane pressure (Eskicioglu et al, 2006;Kuo and Parkin, 1996). In general, all the recovery values in this study were satisfactory (Table S1).…”

“…Membranes with MWt cutoffs (MwC) of 100, 30, 10, 5, 3, and 1 kDa were arranged in a cascading series. The UF procedure was as follows (Eskicioglu et al, 2006). After rinsing the stirred cell, it was loaded with 180 mL of primary filtered (0.45 μm) and diluted (5:1) supernatants from sludge pretreated with MW, MW-acid, MW-alkali, MW-H 2 O 2 , and MW-alkali-H 2 O 2 .…”

Optimization and Performance of Moderate Combined Alkali and Microwave Pretreatment for Anaerobic Digestion of Waste-Activated Sludge

“…With the increase in microwave power and processing time, the pH and ammonia nitrogen of the treated sludge increased significantly, but still within the range of appropriate conditions for AD. This change happened mainly because the intracellular substances including enzymes released, resulting in pH change and conversion of organic nitrogen compounds to ammonia nitrogen [4,12,19]. The SCOD also increased after microwave treatment, but when Coefficient of determination R 2 = 0.934 Table 3.…”