Up­date on Waste­water Treat­ment Plant odour mit­i­ga­tion

The McLeod River Post - - News -

Sea­sonal mit­i­ga­tion work, in­clud­ing adding a wa­ter cap to the sludge hold­ing ponds, is un­der­way at the White­court Waste­water Treat­ment Plant to con­trol odours at the fa­cil­ity. This, in ad­di­tion to other odour mit­i­ga­tion strate­gies, will be con­ducted through­out the spring and sum­mer months to re­duce odours that may be gen­er­ated by the fa­cil­ity.

Based on rec­om­men­da­tions made by Stan­tec Engi­neer­ing on the Waste­water Treat­ment Plant, White­court has im­ple­mented a num­ber of odour mit­i­ga­tion ac­tiv­i­ties at the fa­cil­ity over the last sev­eral years. The Town of White­court has:

• Re­stricted the sep­tic waste ar­riv­ing at the Waste­water Treat­ment Plant;

• Re­lo­cated the truck dump sta­tion to the plant and placed con­trols on its use;

• Im­ple­mented an odour con­trol pro­gram which in­cludes the mon­i­tor­ing/ test­ing/in­jec­tion of Biomax to con­trol hy­dro­gen sul­phide (H2S) gen­er­a­tion;

• Im­ple­mented a mon­i­tor­ing pro­gram for the de­tec­tion of H2S on prop­er­ties ad­ja­cent to the plant;

• Changed the op­er­at­ing prac­tices of the plant to con­trol odours gen­er­ated by the di­gesters;

• Planted over 300 trees in an ef­fort to es­tab­lish a green buf­fer be­tween the la­goon and res­i­dents;

• In­cor­po­rated in­for­ma­tion to as­sist res­i­dents with proper use of the san­i­tary sewer sys­tem into pro­mo­tional ma­te­ri­als.

Through­out this spring and sum­mer, crews will con­tinue to mon­i­tor, test and in­ject Biomax to con­trol H2S gen­er­a­tion. Town

Ad­min­is­tra­tion has drafted a new util­i­ties by­law that will en­hance the Town’s abil­ity to con­trol the use of the san­i­tary sewer col­lec­tion sys­tem. This by­law will be pre­sented to the Poli­cies and Pri­or­i­ties Com­mit­tee for re­view later this year.

The Town wants to im­prove the qual­ity of life of all res­i­dents in the area, and those en­joy­ing recre­ational fa­cil­i­ties in the vicin­ity. There are a num­ber of medium to long-term projects that are cur­rently be­ing re­viewed. Stan­tec Con­sult­ing Ltd. is pre­par­ing a fol­low-up re­port that will be com­pleted this sum­mer that will re­view ac­tiv­i­ties that have been com­pleted, the re­sults, and eval­u­ate if more can be done in a cost-ef­fec­tive man­ner for the en­tire com­mu­nity.

The op­er­a­tion of a Waste­water Treat­ment Plant is an in­volved science. It uses both me­chan­i­cal and bi­o­log­i­cal pro­cesses to break down or­ganic mat­ter which ar­rives on a con­tin­ual ba­sis. There is a point in the process where the sys­tem changes from aer­o­bic (with oxy­gen present) to anaer­o­bic (lack­ing oxy­gen) which oc­curs in the waste ac­ti­vated sludge hold­ing ponds, and a byprod­uct of this change is the cre­ation of H2S, among other gases, which cre­ates the odour. This sludge is stored on-site dur­ing the win­ter, and re­moved ev­ery fall for use as a fer­til­izer for lo­cal farm­ers.

We ap­pre­ci­ate the com­mu­nity’s un­der­stand­ing as we work to min­i­mize the im­pact of this fa­cil­ity on our com­mu­nity.

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