The processes used in these facilities are also categorized as preliminary, primary, secondary, and tertiary.
Preliminary, primary, secondary, and final treatment methods for wastewater generated from domestic sources are well documented and designed.
The rather simple concept of engineering classification of sewage treatment stages is introduced: preliminary, primary, secondary, and tertiary treatment.
An analysis is made of essential system reactivation and cleansing stages, preliminary treatment technologies, primary and secondary circuit chemical water treatment, and radioactive water treatment.
This article reports on this feasibility data, plus providing some preliminary information on primary and secondary outcomes.
Your initial topic description should be informed by a preliminary investigation into both primary and secondary sources (see #3 and #4 below) in order to demonstrate how they address and inform the topic you've chosen.
Numerical experiments combined with analytical solutions provide a rational approach for a preliminary design of the primary and secondary supports in deep tunnels below the water table, and contribute to identify the load-transfer mechanisms between ground, water, and support.
Qualitative preliminary phytochemical screening of primary and secondary metabolic compounds such as starch, phenols, cardiac glycosides, flavonoids, saponin glycosides, alkaloids, steroids, volatile oils, and tannins was carried out according to the standard common phytochemical methods described by Trease and Evans [29] and Harborne [30].
Preliminary results establish the feasibility of visualizing both primary and secondary liver tumors and primary renal cell tumors with ARFI imaging.
In our preliminary evaluation, they exhibited pKa of 6 to 9 for primary and secondary amino groups (-NH2 and -NHR-) consisting of chitosan and N-octadecylchitosan.
