Accessing Assimilative Capacity through a Dual Discharge Approach

Retrospective Analyses of Inputs of Municipal Wastewater Effluent and Coupled Impacts on an Urban Lake

“…The next largest contribution for a lake in New York on an annual basis is 4% (Rucinski et al, 2007). The substantial interannual variations in this statistic for Onondaga Lake (Figure 2b) reflect the effects of natural variations in runoff delivered by the tributaries.…”

“…The contribution of QMetro to the overall hydrologie budget of the lake is extraordinarily large compared with other lakes that receive WWTP effluent (Rucinski et al, 2007), representing approximately 25% of the total inflow on an average basis for the period of 1971-2010, and 30% during the critical water quality interval of summer ( Figure 2b). The next largest contribution for a lake in New York on an annual basis is 4% (Rucinski et al, 2007).…”

Effects of Discharge Characteristics on Aqueous Pollutant Concentration at Jebel Ali Harbor, Dubai-UAE

“…For example, efforts were made to better understand the hydrodynamic regimes (Estacio et al, 1997;Vethamnoy et al, 2005;Azam et al, 2006a;Dias and Lopes, 2006a,b;Maraqa et al, 2008;Montano-Ley et al, 2008), to investigate pollutant dispersion (Gesteira-Gomez et al, 1999;Das et al 2000), and to assess water quality (Tao et al, 2001;Copeland et al, 2003;Fiandrino et al, 2003;Lopes et al, 2005;Cerejo and Dias, 2007). Other efforts were made to establish surveillance procedures (Lopes et al, 2005) and to quantify the impact of effluent discharge (Ganoulis, 1991;Kashefipour et al, 2002;Gupta et al, 2004, Kashefipour et al, 2006Rucinski et al, 2007;Brewer et al, 2008 …”

Partitioning phosphorus concentrations and loads in tributaries of a recovering urban lake

“…A small fraction of the discharge from Metro (2% as an annual average) irregularly enters the lake during particularly severe storms (e.g., facility hydrologically overloaded) following only primary treatment (described as the Metro "bypass"). The Metro discharge is extraordinary with respect to its contribution to the overall hydrologic budget for the lake (Rucinski et al 2007), representing nearly 20% of the total on an annual basis, and it is the single largest input in August of most years (Effler 1996).…”

“…Diversion of Metro had been the leading rehabilitation plan before the loss of assimilative capacity for oxygen demanding wastes of the Seneca River from the zebra mussel invasion (Effler et al 2004), an alternative that is to be revisited if the P goal for the lake cannot be reached (NYSDEC 1998). Recently a dual discharge strategy was proposed that would effectively result in a partial diversion to the river; for example., the effluent would be routed to the river except when oxygen standards may be compromised, in which case the effluent would be discharged to the lake (Rucinski et al 2007). While partial diversion of the Metro effluent would decrease P loading to the lake, it would also affect the hydrology of the lake through reductions in inflow.…”