工程工具 · 罐体与池体

溶气气浮（DAF）设计

筛查溶气气浮回流水力、负荷、释放空气质量、气固比和接触时间。

市政饮用水净化阶段 03 — Clarification & Filtration

状态: 已上线

PROJECT · OPTIONAL

Project metadata

Report context for exports; it does not change calculations.Edit detailsHide details

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01 · USER INPUT

Design basis and inputs

Raw flow *m³/d · flow before recycleActive cell count *cells · identical parallel separation cellsSurface area per cell *m² · active plan areaRecycle ratio *fraction of raw flow · Qr = R × raw flow; 0.10 = 10% of raw flowEffective released-air concentration *mg/L recycle · user-entered released-air concentration in recycle streamSolids loadkg/d · optional user-entered captured or target solids mass basisContact/separation volumem³ · optional user-entered volume for nominal contact-time screeningTarget contact timemin · optional minimum project contact-time criterion

Engineering calculations run locally in this browser after assets load.

02 · CALCULATED RESULT

Results at a glance

Load or enter inputs, then calculate to create an authoritative result.

03 · REPORTING

Exports and verification

CSV contains input and output detail. PDF uses the current calculation and report metadata.

Verification suite

Calculation revision 22463161

59 focused fixtures: independent recycle, hydraulic loading, air-mass, air-to-solids, and contact-time cases; numerical boundaries, criterion comparison, and input rejection. Tests are deterministic and run without network access.

此工程工具目前仅提供英文版本。

工程依据

方法

将原水流量与回流量分开计算水力负荷，再依据输入的回流、有效释气浓度和固体负荷计算释气质量及气固比。接触时间是名义体积/流量筛选值，不代表停留时间分布，也不保证去除效果。

Recycle flow = recycle fraction × raw flow. Total hydraulic flow includes raw plus recycle.

Raw-flow surface loading uses raw flow; total hydraulic loading uses raw flow plus recycle flow.

Released-air mass = recycle flow × user-entered effective released-air concentration, with mg/L converted to kg/m³. Air-to-solids ratio = released-air mass / entered solids mass basis.

Contact-time screening uses raw flow plus recycle flow through the entered contact/separation volume. Calculated contact time = volume / total hydraulic flow.

范围 / 限制

根据声明的输入计算回流量、原水与总水力负荷、释放空气量及气固比；可选纳入固体负荷和接触容积判据。
Calculated hydraulic contact time is a nominal volume/flow screening value and does not represent actual residence-time distribution.
Effective released-air concentration is user-entered. This version does not derive saturator performance from pressure, temperature, or Henry law.
The air-to-solids ratio is a design-basis ratio and is not an adequacy, optimization, or solids-removal guarantee.
This screening tool does not predict bubble size, perform CFD, select recycle pumps, or guarantee solids-removal performance.

工程路径

上游背景

混凝与絮凝设计使用原水工况和声明的烧杯试验判据，为首个分离工艺选择提供依据。

当前工具决策

溶气气浮（DAF）设计筛查溶气气浮回流水力、负荷、释放空气质量、气固比和接触时间。

下游工程步骤

粒状滤料过滤器设计若澄清或气浮后设置过滤，应将选定的固体与流量依据带入滤池负荷和水头损失审查。