Sentence examples for more stringent discharge from inspiring English sources

The hybrid systems were developed in the 1960s but their use increased only during the late 1990s and in the 2000s mostly because of more stringent discharge limits for nitrogen and also more complex wastewaters treated in constructed wetlands (CWs).

With the deteriorating environment leading to more stringent discharge standards, including the emphasis on effluent reuse, CW systems operating as standalone technologies are in some cases unable to meet the requirements of these new guidelines despite improvements in design and operational strategies and the utilization of intensified systems.

When the state had earlier imposed a more stringent discharge standard for treated wastewater of 500 mg/L of total dissolved solids, drillers had found it more cost-effective to invest in centralized and mobile wastewater treatment for recycling and reuse in fracking operations than to discharge into the environment.

These range from securing and preserving access to sufficient quantities of high-quality water and limiting production disruptions, to meeting ever-more stringent wastewater discharge standards.

Furthermore, while other sources of error must be addressed to identify proper sample volume thresholds (see Supporting Information) regardless of the discharge standard, this likely becomes even more important as the discharge standard becomes more stringent.

Although other studies have included patients with one or more readmission within 30 days of discharge, we utilised more stringent enrolment criteria, requiring patients to have had four or more admissions in the prior 6 months.

The cruise industry, having first taken no position on the legislation but perhaps sensing a potential public-relations disaster, ultimately worked with lawmakers on the new rules, which are more stringent than existing federal statutes governing discharges.

Unlike other studies that defined recovery of kidney function based on dialysis independence at hospital discharge, we used a more stringent criterion – a measured creatinine clearance >20 ml/minute by day 28.

"EPA would expect that more stringent criteria in NPDES permits will result in reduced toxic discharges and a long-term reduction in toxics in the environment over time," she says.

Phase 2 discharge standards proposed by USCG are effectively up to 1000 times more stringent than phase 1, and if implemented, will clearly require protocols (and sample volumes) that differ from what is presented here.

Mean effluent values of ⩽1.0 mg L−1 P and 1.3 mg L−1 N met the legal discharge limits of the European Water Framework Directive and show a potential to comply with upcoming, more stringent legislation.