DESCRIPTION As the infrastructure in the United States ages, increasing importance is being placed on rehabilitating the nation's wastewater treatment collection systems. Cracks, settling, tree root intrusion, and other disturbances that develop over time deteriorate pipe lines and other conveyance structures that comprise wastewater collection systems. These deteriorating conditions can increa...

The lift station is becoming increasingly common as a component of the sewerage systems of Indiana. Cities and towns that have operated for years without the necessity of a lift station (other than one integral with sewage treatment plant) are finding it necessary to include a lift station in plans for extension of sewers. Those cities and towns which have not yet found it necessary to include ...

The aim of this study was to improve the understanding styrene emissions in sewer laterals, resulting from installation and steam curing a resin impregnated cured-in-place-pipe (CIPP) liner, within sanitary sewer. included development performance assessment controlled field test program that measures records before, during, after steam-curing CIPP liner. Measured are then compared with those pu...

Besides collecting legitimate wastewater, municipal sanitary sewer systems, even when separated from storm also receive unwanted inflow and infiltration (I/I) that adversely impact their sizing, economics, operation. Although several statistical models have been proposed to quantify I/I, advanced methods intricate data requirements may be unrealistic for practitioners who need investigate I/I i...

A sensitive method was developed to measure the sediment concentration of 10 wastewater micropollutants selected as potential sanitary tracers of sewage contamination and include: nonsteroidal anti-inflammatory drugs (acetaminophen - ACE and diclofenac - DIC), an anti-epileptic drug (carbamazepine - CBZ), a β-blocker (atenolol - ATL), a stimulant (caffeine - CAF), a bronchodilator (theophylline...