エンジニアリングツール · 化学

塩素・クロラミンのCT・残留濃度設計

理論接触時間とバッフル係数を考慮した接触時間、実測残留濃度による CT、区間別の曝露量を計算します。

状態: 公開中

PROJECT · OPTIONAL

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01 · USER INPUT

Design basis and inputs

Initial residual basisInitial residual basisSelect the active source of the initial residual

Disinfectant dosemg/L as Cl2User-entered disinfectant demandmg/L as Cl2

Measured final outlet residualOptional · blank means not enteredEntered zero is a measured result and is used for the final Residual × T10 term.User-entered CT criterionOptional · blank means not enteredBlank means no criterion comparison. Zero is inactive.

Contact configurationContact configurationChoose one hydraulic basis

Design flowm³/dContact basin volumem³Baffling factorfractionRequired range: 0 to 1.First-order decay constantmin⁻¹

Browser calculation. Criterion comparisons are screening only; no regulatory compliance conclusion or pathogen credit is provided.

02 · CALCULATED RESULT

Structured results

Enter the active design basis, then calculate to create a result.

03 · REPORTING

Exports and verification

Exports include only the selected residual basis and active contact configuration. A current result is required.

Verification suite

Calculation revision 1.1

Focused deterministic tests cover single-basin and multi-segment residual propagation, CT methods, optional criteria, active basis selection, and validation.

このエンジニアリングツールは現在、英語版のみ提供しています。

エンジニアリングの根拠

方法

投与量−需要または実測初期残留の選択分岐と、名目滞留時間・入力されたバッフル係数から、区間ごとの残留と CT をスクリーニングします。ユーザー基準と一般化した減衰仮定は、規制 CT クレジットや規制 CT 計算を自動的に与えるものではありません。

Available calculation branches are dose-minus-demand or directly measured initial residual, and single-basin or serial multi-segment contact. There is no separate free-chlorine/chloramine selector; the same generic user-entered decay model is used for either intended chemistry.

Calculated initial residual = max(dose − user-entered demand, 0), unless directly measured initial residual is selected.

First-order modeled residual uses Cend = Cstart exp(−kT10) in each contact segment.

Theoretical detention = volume / flow. T10 = user-entered baffling factor × theoretical detention.

Multi-segment Residual × T10 sums each segment modeled end residual × segment T10, using an entered measured final outlet residual for the final segment term when supplied, including 0 mg/L.

Integrated first-order exposure sums Cstart(1−exp(−kT10))/k, with the k=0 limit Cstart×T10.

The user-entered CT criterion compares with single-basin Residual × T10 or, in multi-segment mode, segment-summed Residual × T10. This is not regulatory CT credit.

範囲 / 制限事項

区間ごとの残留濃度×T10 の合計、出口残留濃度×総 T10、積分した一次反応曝露量を区別して扱います。実測残留濃度がゼロの場合も有効です。
Residuals, dose, and demand use an entered chlorine-equivalent basis in mg/L as Cl2. The model does not distinguish free chlorine from chloramine, model chemical-specific reactions, or select chemistry-specific decay coefficients.
There are no pH, temperature, organism, log-inactivation, or reference CT-table inputs. This tool does not calculate required CT or regulatory/pathogen credit; the user-entered CT criterion is a comparison value only.
No jurisdiction-specific compliance conclusion, automatic pathogen credit, DBP prediction, or chemical recommendation.
Regulatory CT profiling uses measured residual and peak-hour flow for each disinfection segment. This screen uses a user-entered design flow in m³/d, baffling-factor estimates, model-derived intermediate residuals, and at most one measured final residual; its Residual × T10 outputs are not regulatory CTcalc.
Baffling factor and decay constant are project inputs. Integrated first-order exposure is not automatically equivalent to a regulatory CT-credit method.

エンジニアリングパス

上流の前提

対象を定めた高度処理の基準特定の水質目標が裏付ける場合に限り、吸着または酸化バリアへ進みます。

このツールでの設計判断

塩素・クロラミンのCT・残留濃度設計理論接触時間とバッフル係数を考慮した接触時間、実測残留濃度による CT、区間別の曝露量を計算します。

下流の設計ステップ

浄水池・貯留水の更新設計選択した消毒方式を貯留と最終水質確認に合わせます。スクリーニング結果は規制クレジットではありません。