# What will AGI do for Bleach Tower Dead Time?

## Overview

Pulp mill operators manage chemical bleaching in large retention towers where pulp takes one to three hours to travel from the chemical injection point to the output brightness sensor. This physical delay forces process engineers to control chemical dosing blind. They inject chlorine dioxide based on the state of incoming brownstock, but the resulting pulp brightness remains completely unknown until the material finally exits the tower.

This dead time creates a severe control lag when incoming wood properties or upstream cooking conditions shift unexpectedly. If the initial chemical dose is too low, the mill generates hours of off-spec pulp before the operator even detects the drop in brightness. To prevent costly production downgrades, operators universally over-dose expensive bleaching chemicals, intentionally burning excess operational budget to guarantee they hit the minimum brightness threshold.

Traditional feedback loops and PID controllers fail fundamentally when attempting to stabilize systems with multi-hour delays. Conventional feedforward models attempt to predict the required dose but degrade rapidly due to optical sensor drift and seasonal shifts in organic wood chemistry. Without an adaptive method to predict final brightness from real-time inlet variables, mills remain trapped between wasting raw materials and risking defective production.

## How AGI delivers it

### Services-as-Software

For Bleach Tower Dead Time, get the professional outcome delivered as software, priced on results, not headcount.

Routes to: services.do, services.studio

### Autonomous Agents as digital employees

For Bleach Tower Dead Time, hire a digital employee that does the job under earned, supervised autonomy.

Routes to: agents.do, workflows.do, management.studio, agents.management

## Related

- [1040 Document Processing](https://agi.do/Problems/1040_Document_Processing)
- [1040 Overflow Preparation](https://agi.do/Problems/1040_Overflow_Preparation)
- [1040 Return Generation](https://agi.do/Problems/1040_Return_Generation)
- [1040 Return Preparation](https://agi.do/Problems/1040_Return_Preparation)
- [1040 Schedule Mapping](https://agi.do/Problems/1040_Schedule_Mapping)
- [1099 Brokerage Fetching](https://agi.do/Problems/1099_Brokerage_Fetching)

## Read more

- [The informational twin on agi.as](https://agi.as/Problems/Bleach_Tower_Dead_Time)
- [This page on agi.do](https://agi.do/Problems/Bleach_Tower_Dead_Time)