Update on my previous message/query...

I should clarify... The :env parameters are being passed in the ENV
and I can see
them being displayed in STDOUT in bj_job. The following line
generatess the STDOUT data

@all_of_ENV = ENV.each {|key, value| puts "#{key} is #{value}" }

It effectively outputs the complete ENV as [Key, Value] pairs in
STDOUT.
However the :env parameters I pass with the B.submit command seem to
be malformed and
not amenable to extraction from ENV.
They appears as follows as the 2nd last key/value output by the puts
function above ;

---
is
:avar: 1
is
:bvar: 42
is

followed by ;

RAILS_ENV is development

You  can see the Key, Value formatting is different.
I would have expected them each to be on a single line ie ;

:avar is 1
:bvar is 2

Are the additional CR/LF elements intruding ?

Again , thanks for any help/pointers.
Regards

Denis