Hamil­ton City Coun­cil meets com­pli­ance de­mands with sys­tem up­grade

DEMM Engineering & Manufacturing - - ENVIRONMENTAL -

The Waikato River sup­plies all of Hamil­ton city’s wa­ter sup­ply. Wa­ter is treated, dis­trib­uted, and man­aged by Hamil­ton City Coun­cil to en­sure that when wa­ter reaches con­sumers, it is free from harm­ful or­gan­isms and meets wa­ter sup­ply stan­dards.

Ev­ery sec­ond of each day, HCC pro­duces an av­er­age of 2385 glasses of high qual­ity drink­ing wa­ter to over 51,000 homes and in­dus­trial premises.

The coun­cil is also re­spon­si­ble for the op­er­a­tion of the Pukete Waste­water Treat­ment Plant ( WWTP) – Hamil­ton’s only waste­water treat­ment fa­cil­ity. The Pukete WWTP is con­tin­u­ally de­vel­op­ing, in its case to im­prove op­er­a­tional per­for­mance and main­tain com­pli­ance with a chang­ing gov­ern­ment reg­u­la­tory en­vi­ron­ment.

Lever­ag­ing the Fac­to­ryTalk In­te­grated Pro­duc­tion and Per­for­mance Suite from Rock­well Au­to­ma­tion, HCC im­ple­mented an up­grade to its su­per­vi­sory con­trol and data ac­qui­si­tion (SCADA) sys­tem at the plant, en­hanc­ing the abil­ity of key stake­hold­ers to make in­formed de­ci­sions, im­prove per­for­mance ef­fi­ciency and meet reg­u­la­tory com­pli­ance.

Meet­ing com­pli­ance and pro­duc­tiv­ity re­quire­ments

Safe drink­ing wa­ter is a fun­da­men­tal re­quire­ment for public health and in 2008 the Min­istry of Health is­sued re­vised drink­ing wa­ter stan­dards. To com­ply with these reg­u­la­tions, it is the re­spon­si­bil­ity of wa­ter treat­ment fa­cil­i­ties to track, save and pro­vide monthly re­ports on wa­ter pro­duc­tion, in­take and dis­charge lev­els. Cru­cially, the stan­dards re­quire that Wa­ter Treat­ment Plants re­tain op­er­at­ing data for 10 years.

“Our pre­vi­ous sys­tem was out­dated and we re­quired an up­grade to help sim­plify the process of com­ply­ing with cur­rent wa­ter reg­u­la­tions. Not only that, but we iden­ti­fied the po­ten­tial for im­prov­ing op­er­a­tional ef­fi­cien­cies at the plant by im­ple­ment­ing an in­te­grated sys­tem that aims to in­crease pro­duc­tiv­ity and re­duce down-time,” said Gary Pit­caithly, au­to­ma­tion and elec­tri­cal man­ager at HCC.

A key aim of the up­grade was to de­liver a sys­tem with the abil­ity to re­tain 10 years of data in a sta­ble and re­li­able man­ner. At the same time, the sys­tem would need to pro­vide op­er­a­tional ef­fi­cien­cies com­pared with the pre­vi­ous op­er­at­ing sys­tem, while also main­tain­ing a se­cure en­vi­ron­ment only ac­ces­si­ble by au­tho­rised stake­hold­ers.

To im­prove on this process, HCC en­gaged Rock­well Au­to­ma­tion to pro­vide the latest ver­sions of the Fac­to­ryTalk soft­ware suite as the in­te­gral el­e­ment of an up­grade to its sys­tem.

Prasad Nory, in­dus­try man­ager – South Pa­cific at Rock­well Au­to­ma­tion said that Fac­to­ryTalk His­to­rian and Fac­to­ryTalk Van­tage­Point are in­creas­ingly be­com­ing stan­dards in the wa­ter/waste­water in­dus­try – es­pe­cially with the need for com­pli­ance to chang­ing drink­ing wa­ter stan­dards. Also, Fac­to­ryTalk His­to­rian ME has been used by some coun­cils in their pump sta­tions to store data lo­cally to take care of com­mu­ni­ca­tion fail­ures and meet com­pli­ance. By up­grad­ing to the Fac­to­ryTalk suite the key ben­e­fits iden­ti­fied by coun­cil in­cluded: su­pe­rior re­port­ing for com­pli­ance to gov­ern­ment reg­u­la­tions, im­proved sys­tem re­li­a­bil­ity and sta­bil­ity, and re­duced risk when con­trac­tors are on­site to un­der­take mod­i­fi­ca­tions or fur­ther ex­pan­sions, he said.

The Fac­to­ryTalk soft­ware suite de­liv­ers real-time ex­change of in­for­ma­tion through­out or­gan­i­sa­tions, a crit­i­cal el­e­ment that al­lows for more in­formed busi­ness de­ci­sions, im­proved re­spon­sive­ness, in­creased pro­duc­tiv­ity, re­duced costs and ease of com­pli­ance with reg­u­la­tions.

Im­ple­mented in-house by Pit­caithly, HCC up­graded the WWTP’s sys­tem over six months to in­clude the Fac­tory View (SE), Fac­to­ryTalk His­to­rian, Fac­to­ryTalk Van­tage­Point, Fac­to­ryTalk As­setCen­tre and Fac­to­ryTalk View­Point ap­pli­ca­tions. The Rock­well Au­to­ma­tion Cus­tomer Sup­port and Main­te­nance team pro­vided sup­port to the coun­cil dur­ing the up­grade, par­tic­u­larly for the mi­gra­tion from His­to­rian Clas­sic to Fac­to­ryTalk His­to­rian.

The long-term stor­age and re­port­ing ca­pa­bil­i­ties re­quired to com­ply with wa­ter stan­dards are pro­vided by Fac­to­ryTalk His­to­rian and Fac­to­ryTalk Van­tage­Point. Data is stored in the His­to­rian server for the re­quired 10 year re­ten­tion pe­riod and is easily ac­cessed for anal­y­sis and re­port­ing pur­poses.

Fac­to­ryTalk Van­tage­Point is used by the plant to sched­ule and pro­duce au­to­mat­i­cally gen­er­ated re­ports pro­vid­ing in­for­ma­tion on pe­ri­od­i­cal wa­ter con­sump­tion, dis­charge, in­take, wa­ter qual­ity and stor­age lev­els. Fac­to­ryTalk As­setCen­tre pro­vides im­proved con­trac­tor con­trol, change man­age­ment and stor­age ca­pa­bil­i­ties.

Most im­por­tantly, the plant is now po­si­tioned to ef­fi­ciently com­ply with wa­ter reg­u­la­tions in­clud­ing the stor­age of data and records for 10 years.

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