The phrase "a considerable effort has" is correct and usable in written English.
It can be used when discussing the amount of work or resources that have been dedicated to a particular task or project.
Example: "A considerable effort has been made to improve the quality of our services over the past year."
Alternatives: "a significant effort has" or "a substantial effort has".
Hence, a considerable effort has been devoted to these organic contaminates removal from water sources.
A considerable effort has been directed toward understanding the structure function relationships using native proteins.
In fact, a considerable effort has gone into this area in the past fifteen years.
A considerable effort has been dedicated in the past years concerning the removal of these compounds from wastewater.
For this reason, a considerable effort has also been devoted to the understanding of how aerodynamics is modified by imperfections.
In the BC generations project a considerable effort has been made to engage the public in the decision making of the biobank (O'Doherty and Burgess 2009).
Albeit a considerable effort have been invested in finding alternative non-invasive approaches, these have not been sufficiently succesfull to replace biopsy assessment.
As a result, considerable effort has been directed towards reducing or altering the biosynthesis of lignin in plants to permit more efficient utilization of plant cell walls [ 1- 7].
However, we have found it extremely useful for perspective to also examine reaction rates in solution, a field where considerable effort has been made during the last decades to elucidate the interplay between the chemical system and the environment, and where the 'temperature' of the scientific debate is now probably less than in the field of enzyme catalysis.
The first technology is multi-core CPUs where manufacturers place more computational units (cores) onto a single processor chip; considerable effort has been put into programming languages, environments and algorithms to allow for a smooth transition from a single sequential processor to multi-core CPUs [ 11].
Given this enormous potential as a source of genetic novelty, considerable effort has been devoted by the scientific community to the characterization of new TEs in the plethora of new genomes and transcriptomes available in public databases, particularly in organisms for which the knowledge about TEs is scarce.
