Title

O & M Manual

Body

El Estero Water Resource Center

EL ESTERO
GENERAL
PRELIMINARY
TREATMENT
PRIMARY
Treatment
SECONDARY
TREATMENT
FINAL
EFFLUENT
TERTIARY
TREATMENT
SOLIDS
HANDLING
PLANT
UTILITIES
ELECTRICAL
DISTRIBUTION
ADMIN
FACILITIES
MOBILE
ASSETS
LIFT
STATIONS
All PRocess Area OVerviews 
Sections

15 - Solids Handling Overview

15 Solids Handling
Solids Handling Processes 1500 General Solids Handling 1501 Gravity Thickener 1502 Dissolved Air…

1501 - Gravity Thickener

15 Solids Handling
The Gravity Thickener receives Primary Sludge and compacts the solids via gravity, thickening them from approximately 0.5% solids to 5%.…

1502 - Dissolved Air Floation Thickener

15 Solids Handling
The Dissolved Air Flotation Thickener is fed Primary Scum, Secondary Scum, and Wasted biomass from the secondary system via either Waste…

1503 - Thickened Sludge Pump Station

15 Solids Handling
Thickened Pump Sludge Pump Station pumps from the Gravity Thickener and Dissolved Air Flotation Thickener to the Anaerobic Digesters. The…

1504 - Thickener Scrubber System

15 Solids Handling
The Thickener Scrubber System services the Gravity Thickener and Dissolved Air Flotation Thickener. The scrubber consists of a fan and…

1505 - Anaerobic Digestion

15 Solids Handling
Two actively heated and mixed Anaerobic Digesters house the anaerobic digestion process. A secondary holding digester (SHT) is unmixed and…

1506 - Solids Dewatering

15 Solids Handling
Digester Sludge Dewatering is accomplished via two 2-meter Winklepress belt filter presses. Digested feed solids are dewatered from around…

1507 - Solids Polymer System

15 Solids Handling
3 polymer systems service the thickening and dewatering processes:2 Liquid Polymer Systems for Dewatering1 Dry Polymer System for…

1508 - FOG Handling System

15 Solids Handling
El Estero receives up to 5,000 gallons per day of Fats, Oil, and Grease (FOG) collected from restaurant grease traps. The FOG receiving…

SOP Content Pages

15 Belt Press Feed Pumps Start Up

The Filter Feed Pumps are typically run under automatic control from the Belt Filter Press local control panel. One pump is in…

15 Belt Press Shutdown

The dewatering system is turned off by the swing shift operators before the end of their shift. The systems are turned back on in the…

15 Belt Press Start Up

The dewatering system is turned off by the swing shift operators before the end of their shift. The systems are turned back on in the…

15 DAFT Shutdown SOP

Two SOPs are provided for DAFT Shutdown. Short term shutdown shuts off all feed to the DAFT. Long term shutdown…

15 Dry Polymer Pumps Shutdown

This SOP is only necessary if the polymer pumps are being taken out of service. It should be noted that the Liquid Polymer system is…

15 Dry Polymer Pumps Start Up

 This SOP can be skipped when the Filter Feed Pumps have been running normally and are under AUTO control by the Belt Filter Press.One…

15 FOG Receiving Start Up

Marrborg Industries delivers FOG to the WWTP on a daily basis. Typical deliveries involve 1 or 2 trucks, containing a total volume of…

15 Gravity Thickener Equipment Start Up

Typically, the Gravity Thickener drive unit operates continuously.  If power to the equipment is shutoff, an alarm is signaled by…

15 Gravity Thickener Start Up

Starting up the Gravity Thickener involves putting the collector drive into service and adding Elutrient Water to the Gravity Thickener…

15 Heat Exchanger Start Up

The two Heat Exchangers {tag nos. 1505EXR5861 & 1505EXR56825} are typically fueled by the Cogeneration System, which is managed and…

15 High H2S

Digester gas samples are collected and evaluated each morning. If the sample concentration is less than 100 PPM, ferrous chloride…

15 High Rate Mixing Pump Shutdown

Typically, the High Rate Mixing Pumps run in automatic mode, 24 hours per day, seven days per week.

15 High Rate Mixing Pump Start Up

Typically, the High Rate Mixing Pumps run in automatic mode, 24 hours per day, seven days per week.

15 Liquid Polymer Pumps Shutdown

The Belt Press Filter cannot operate without polymer conditioning. If the Dry Polymer System is out of service, the Liquid Polymer System…

15 Liquid Polymer Pumps Start Up

The Belt Press Filter cannot operate without polymer conditioning. If the Dry Polymer System is out of service, the Liquid Polymer System…

15 Mixing Valve Rotation

Valve rotations for the Digester Mixing System are performed each day at 3:00 p.m. (even months = day shift crew, odd months = swing…

15 Recirculation Pump Start Up

The Digester Recirculation Pumps {tag nos. 1505PMP/MTR5300 & 1505PMP/MTR5400} are also called the Digester Heater Pumps.   …

15 Sludge Feed Valve Rotation

Valve rotations for GT/DAF Sludge Feed, Sludge Recirculation, and FOG Feed are performed each day at 7:00 a.m. (day shift crew), 3:00 p.m…

15 Thickened Sludge Pump Station Start Up

The Thickened Sludge Pump Station is equipped with three variable speed progressive cavity pumps.  The general function of each pump…

1502 DAFT & Dissolution Start Up SOP

Starting up the DAFT thickener involves putting the rotating surface scraper drive unit and the Dissolution system into service. Start…
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Plant Schematic

El Estero Schematic Drawing