april 1995, yixing yulong environment protection co., ltd. was
established.
january 2000, successfully developed new-type
hyl series aerator and put it into mass production.
october
2002, certified by iso9001: 2000 quality system.
december
2004, new-type hyl series aerator is selected as “provincial new &
hi-tech technical product”.
february 2005, start research
& development of yulong active biological filler.
august
2006, new plant was completed.
october 2006,
yulong active biological filler was successfully developed and entered into
primary test stage.
march 2007, yulong active biological
filler entered into pilot scale test.
september 2007,
yulong active biological filler passed appraisal of new products organized by
jiangsu provincial economic and trade commission.
november 2007,
our company was selected as “provincial new & hi-tech
enterprise”.
december 2007, “yulong active biological
filler” was selected as “provincial new &hi-tech
product”.
august 2008, our company passed the review of
three ministries and commissions (ministry of finance, publicity department and
ministry of education) and was selected as “new & hi-tech enterprise”
again.
october 2008, our company became “intern base for
undergraduate students of environment college in nanjing university”.
april 2009,
company changed its name to be “jiangsu yulong environment protection co.,
ltd.”
february 2011, cooperated with changchun institute
of applied chemistry of chinese academy of sciences to found “research center
for active biological filler”.
may 2011, our company
achieved class c specialized contractor for environment
project.
august 2011, successfully held “update
achievement of a, class i appraise through discussion for chengyang sewage
disposal plant and technology exchanging meeting”.
march 2012,
“bioreactor with high load rate expanded granular bed” a technology innovation
fund project responsible for our company passed the examination.
june 2012,the company established “wuxi technology
research center for biofilm sewage treatment engineering”.
july 2012, class c specialized contractor for environment project was updated to class b。
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