Integrated Industrial Wastewater Management

ADVENT Integral System (AIS)

A significant innovative reconfiguration of the Activated Sludge Process

The first real innovation in 50 years
Patented and licensed worldwide

The first AIS was designed and constructed for General Electric Plastics by Dr. Carl Adams in 1993 in order to minimize capital and operating costs of biological treatment. The system was developed full-scale by The Advent Group, Inc. in partnership with several industries (GE Plastics, HUNTSMAN Chemicals, OLIN Corporation, Mitsubishi Chemicals). In May 2005, The Advent Group merged with ENVIRON.

Based on the patented concept of "Induced Downward Sludge Velocity," AIS significantly advanced the activated sludge process — it has no moving parts.

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AIS enables both construction of new treatment facilities as well as an easy process of retrofitting existing plants. The system provides the following advantages:

minimizes investment, operation and maintenance costs
space-efficiency precludes the need for substantial land for new construction
works with high concentrations of surfactants (foaming at the aeration chamber does not impact the process)
works with poorly settling biomass (e.g. with gas bubbles attached, filamentous organisms etc.)
removes poorly biodegradable compounds, as it improves flocculation, adsorption and sedimentation
removes persistent dyes, heavy metals, cyanides, fluorides, etc.
minimizes gas emission from the reactors

Technical Capabilities:

flocculation between aeration and clarification provides ability to add chemicals to aid precipitation
parallel plate concept (sidewall angle of 55-60º) prevents plugging and ensures biomass removal
enables increase of MLSS to 6,000 - 8,000 or higher
clarifier integrated into aeration basin
possibility to apply coarse bubble or fine bubble aeration technology

Conventional Clarifier vs. AIS System Cost Comparison

Cost Item System	Conventional Clarifier	AIS System
Clarifier volume, gal	372,070	372,070
Clarifier depth, ft
Side water depth	14	N/A
Depth at center	17	23

Capital Costs
Structural shell	$150,000	$60,000
Sludge mechanism	$80,000	---
Sludge return pumps	$50,000	---
Sludge return piping	$20,000	$15,000
Electrical/Instrumentation	$15,000	$7,000
Total Capital Costs	$315,000	$82,000

Operating Costs
Clarifier maintenance	$8,000	$1,000
Return sludge pumps maintenance	$11,200	---
Clarifier mechanism energy	$1,060	---
Return sludge pumps energy	$5,300	$1,700
Claifier operating labor	$4,500	$1,500
Total Operating Costs	$30,060	$4,200

The ADVENT Integral System (AIS) Full-Scale Applications

LOCATION	PRODUCTS	INTEGRAL TYPE	YEAR ON-LINE	FLOW (m3/hr)	INFLUENT
LOCATION	PRODUCTS	INTEGRAL TYPE	YEAR ON-LINE	FLOW (m3/hr)	BOD (mg/L)	COD (mg/L)	TKN (mg/L)
Grangemouth, Scotland	ABS Resins/ Plastics	Circular	1993	62	800	1,550	N/A
Ribecourt, France	Expanded Polystyrene	Circular	1996	20	440	1,000	N/A
Haverhill, Ohio	Phenois/ BPA/ Aniline	Elliptical	1997	86	1,800	4,000	N/A
Maracaibo, Venezuela	Polyols/ Ethylene Oxide	Elliptical	1997	31	1,000	2,200	N/A
Cartagena, Spain	Polycarbonates/ BPA	Circular	1998	45	155	233	N/A
Waterford, New York	Organic Silicones	Peripheral	1998	2,273	500	800	N/A
Baroda, India	Textile Dyes	Circular	1998	13	2,200	6,700	N/A
Ahmedabad, India	Textile Dyes	Peripheral	1998	682	1,200	3,000	N/A
Gary, Indiana	Coke Oven	Rectangular	1999	193	1,500	3,000	3,500
Surat, India	Dye Plant	Peripheral	1999	91	1,000	3,000	N/A
Gujarat, India	Dispersed Dyes	Circular	1999	38	500	1,600	N/A
Kadi, India	Pharmaceuticals	Circular	1999	6	700	N/A	N/A
Negev Desert, Israel	Pesticides/ Fungicides/ Bromine Chemicals	Peripheral	2000	318	661	1,500	N/A
Mailiao, Taiwan	Phenol Plant	Circular	2000	125	2,660	4,475	N/A
Surat, India	Textile	Circular	2000	68	200	500	N/A
Concordai, Argentina	Fiberboard	Rectangular	2000	25	1,900	4,900	500
Red Deer, Alberta, Can.	Ethylene/Polyethylene	Circular	2000	16	321	530	N/A
Decatur, Alabama	Chemicals	Peripheral	2000	341	600	1,200	500
Remington, Indiana	Soy Processing	Circular	2001	14	1,200	2,700	225
Homer City, Pennsylvania	Power Plant	Circular	2001	43	750	1,200	N/A
Bawla, India	Bulk Drugs	Circular	2001	21	840	2,240	50

LOCATION	PRODUCTS	INTEGRAL TYPE	YEAR ON-LINE	FLOW (m3/hr)	INFLUENT
LOCATION	PRODUCTS	INTEGRAL TYPE	YEAR ON-LINE	FLOW (m3/hr)	BOD (mg/L)	COD (mg/L)	TKN (mg/L)
Vapi, India	Bulk Drugs	Circular	2001	8	5,000	7,500	N/A
Gujarat, India	Textile	Rectangular	2001	66	400	1,000	N/A
Ahmedabad, India	Pigments	Circular	2001	17	2,600	6,500	N/A
Dholka India	Pharmaceuticals	Peripheral	2001	17	200	N/A	N/A
Baroda, India	Petrochemicals	Circular	2001	15	2,900	11,000	N/A
Cubato, Brasil	Coke Oven	Rectangular	2002	100	2,000	3,000	160
Hyderabad,India	Textile	Circular	2003	42	240	600	N/A
Chennai,India	Pharmaceuticals	Circular	2003	3.6	500	1,000	N/A
Mumbai,India	Paints	Circular	2003	6.25	667	1,667	N/A
Franklin, Virginia	Chemicals	Circular	2003	23	2,500	6,000	N/A
Sandersville, Mississippi	Refinery	Circular	2004	28	100	300	5
Lumberton, Mississippi	Refinery	Circular	2004	28	100	300	20
Garyville, Louisiana	Petroleum	Pyramidal	2005	205	275	550	45
Chalmette, Louisiana	Petroleum	Pyramidal	2005	1,205	300	600	60
Sachin, India	Dyes	Rectangular	2005	200	1,500	4,000	N/A
Ahmedabad, India	Guar Gum	Square	2005	4	1,200	2,000	N/A
Bavla, India	Bulk Drugs	Square	2005	21	3,000	4,500	N/A
UNDER CONSTRUCTION
Mexico City, Mexico	Shampoo and Hair Care	Circular	2006	46.8	1,800	2,600	12
Mariscala, Mexico	Shampoo and Hair Care	Rectangular	2006	45	1,200	2,000	200
Sohar, Oman	Methanol	Circular	2006	39	500	750	N/A

SUMMARY OF INTEGRAL ACTIVATED SLUDGE SYSTEMS AND PERFORMANCE URBAN WASTEWATER TREATMENT PLANTS

COMPANY NAME		LOCATION	YEAR	INTEGRAL TYPE	CAPACITY IN PE	PEAK FLOW (cu m/hr)	INFLUENT					EFFLUENT
COMPANY NAME		LOCATION	YEAR	INTEGRAL TYPE	CAPACITY IN PE	PEAK FLOW (cu m/hr)	COD (mg/L)	BOD5 (mg/L)	TSS (mg/L)	TKN (mg/L)	Total P (mg/L)	COD (mg/L)	BOD5 (mg/L)	TSS (mg/L)	Total N (mg/L)	TKN (mg/L)	NO3-N (mg/L)	Total P (mg/L)
CURRENTLY OPERATING
1	ECQUEDECQUES	Ecquedecques, France	1999	Rectangular	450	9	900 to 2,100	400 to 900	500 to 1,000	80 to 110	20 to 30	60 to 80	5 to 10	15 to 20	< 15	NA	NA	NA
2	LANDIVY	Landivy, France	1999	Rectangular	1,050	33	600 to 1,100	400 to 600	600 to 800	100 to 120	20 to 30	30 to 70	5 to 10	5 to 15	7 to 10	NA	NA	<2
3	MAZIERES EN GATINE	Mazière en Gatine, France	1999	Rectangular	1,150	25	800	400	600	100	30	125	25	35	20	NA	NA	<2
4	RETTEL	Rettel, France	1999	Rectangular	1,050	25	800	400	600	100	30	125	25	35	20	NA	NA	NA
5	POIX TERRON	Poix Terron, France	2001	Rectangular	800	22	800	400	600	100	30	125	25	35	20	NA	NA	NA
6	DOMPIERRE SUR HELPE	Dompierre sur Helpe, France	2002	Rectangular	900	17	800	400	600	100	30	125	25	35	20	NA	NA	NA

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