Alex Revchuk
Alex Revchuk, D.Env., P.E., BCES
Managing Engineer
Environmental & Earth Sciences
  • Oakland

Dr. Revchuk provides professional technical science and engineering consulting services in several areas including optimization of drinking water treatment processes, beverage manufacturing, process failure root cause analysis, engineering cost estimation, selection of environmental remediation alternatives, , environmental forensics, environmental damage allocation, regulatory compliance, and assessment of wildfires on surface water supplies. Dr. Revchuk advises private commercial and industrial entities, beverage manufacturers, public agencies, and utilities in energy production, water, and wastewater sectors.

In the water treatment and beverage manufacture arena, Dr. Revchuk focuses on bench- and pilot-scale studies, costing, preliminary design, and optimization of conventional, ion exchange, reverse osmosis, ozone, biological, and proprietary water treatment systems. He also assists clients with process upgrades, project management, and development of standard operating procedures that incorporate Good Manufacturing Practices (GMPs).

In the environmental remediation arena, Dr. Revchuk specializes in the evaluation of suitable groundwater and soil remediation alternatives including efficacy, technical limitations, cost estimation, permitting, and regulatory approval considerations for a wide range of chemicals including petroleum hydrocarbon compounds, chlorinated solvents, pesticides, and metals. 

During his graduate work, Dr. Revchuk developed natural organic matter (NOM) characterization techniques to identify and classify organic matter in surface waters of California and Colorado. His doctoral thesis explored the impacts of southern California wildfire ash contamination (a type of NOM) on drinking-water supplies, as well as the development of treatment strategies to produce drinking water from wildfire-affected waters.

CREDENTIALS & PROFESSIONAL HONORS

  • D.Env., Environmental Science and Engineering, University of California, Los Angeles (UCLA), 2011
  • M.S., Environmental Health Sciences, University of California, Los Angeles (UCLA), 2006
  • B.S., Environmental Systems, University of California, San Diego, 2004
  • Bay Area Water Works Association (BAWWA), Board Member

    UCLA Environmental Science & Engineering Program Endowment, 2006–2008

    Completed ABET/ASAC Accredited Industrial Hygiene M.S. Program, UCLA, 2006

    Environmental Systems Major Thesis of the Year, UCSD, 2004

    California Institute for Telecommunications and Information Technology, Cal-(IT)², Fellow of the Year, UCSD, 2002

LICENSES & CERTIFICATIONS

Licensed Professional Civil Engineer, California #84362

Board Certified Environmental Scientist (BCES) in Surface Water Resources, # 14-60010, Board of American Academy of Environmental Engineers and Scientists

HAZWOPER 40-hour Training

LANGUAGES

  • Russian

Publications

Revchuk AD, Suffet IH (Mel). Effect of wildfires on physicochemical changes of watershed dissolved organic matter. Water Environment Research 2014 86(4): 372–381.
DOI: http://dx.doi.org/10.2175/106143013X13736496909671

Revchuk AD, Najm I, Suffet IH (Mel), Billica J Use of physicochemical changes in NOM to evaluate THM formation during snowmelt, after wildfires, and in pre-ozonation water treatment. Proceedings, 4th IWA Specialty Conference Natural Organic Matter: From Source to Tap and Beyond, Irvine, CA, 2011.

Revchuk AD, Najm I, Suffet IH (Mel). Wildfire-derived DOM: Physicochemical changes caused by annual precipitation events. Proceedings, AWWA Water Quality Technology Conference, Savannah, GA, 2010.

Revchuk AD, Najm I, Suffet IH (Mel). Wildfire-induced physicochemical changes in Santa Barbara source water DOC and the subsequent ozone treatment evaluation. Proceedings, AWWA Annual Conference, Chicago, IL, 2010.

Revchuk AD, Suffet IH (Mel). Ultrafiltration separation of aquatic natural organic matter: Chemical probes for quality assurance. Water Research 2009; 43(15):3685–3692.

Revchuk AD, Philibert MA, Billica J, Suffet IH (Mel). The relationship of size, polarity and THMFP of DOC in Northern Colorado watersheds. Proceedings, AWWA Annual Conference, San Diego, CA, 2009.

Revchuk AD. Evaluation of the quality assurance of ultrafiltration separation for humic substances by chemical probes. Proceedings,14th Meeting of International Humic Substances Society, Moscow, Russia, 2008.


Prior Experience

Scientist/Engineer, Water Quality and Treatment Solutions (WQTS) Inc., 2008–2012

Graduate Lab Researcher IV, UCLA, Environmental Water Quality Lab, 2004–2008

Project Researcher, Castaic Lake Water Agency, Rio Vista Water Plant/Carollo Engineers 2006

Project Developer and Technician, Scripps Institution of Oceanography, 2001–2004

Professional Affiliations

Bay Area Water Works Association (BAWWA), 2013–present (board member)

American Academy of Environmental Engineers and Scientists, 2014—present (member)

American Water Works Association (AWWA), 2004–present (member)

Project Experience

Water Treatment

Conducted performance optimization evaluation of seawater desalinization treatment plant consisting of media filtration, multistage ultrafiltration (UF), multistage reverse osmosis (RO), and ultraviolet (UV) disinfection processes. Oversaw technical implementation of recommendations and regulatory agency interactions.

Operated a conventional pilot treatment train with pre-ozonation to evaluate disinfection by-product (DBP) minimization strategies following wildfires. Full-scale ozone contactor is currently under construction. Evaluated wildfire-induced physicochemical changes in dissolved natural organic matter, post-fire watershed dynamics, and water treatment of wildfire-affected waters in order to improve coagulation efficiency, reduce membrane fouling, and minimize the production of carcinogenic disinfection by-products, such as trihalomethanes (THMs) and haloacetic acids (HAAs), during disinfection.

Performed research related to mass and polarity characterization of natural organic matter (NOM) in drinking-water supplies. Evaluated spatial and temporal changes of NOM and their effects on water treatment plants in Colorado. Made recommendations on water source selection and coagulation optimization.

Operated a demonstration-scale experimental pellet softening water treatment process to reduce the volume of reverse osmosis (RO) waste brine. Full-scale process is currently under design, and construction will commence in less than a year.

Conducted a market research survey to evaluate the demand for calcium carbonate pellets produced as a by-product of a water-softening treatment process. Survey spanned a wide range of markets ranging from cement manufacture to agriculture and livestock. Treatment process feasibility was directly linked to cost recovery through sale of the by-product. Several viable buyers were identified.

Evaluated nitrate treatment alternatives for groundwater production, including advantages and disadvantages of ion exchange, reverse osmosis, and biological denitrification treatment, feasibility of the alternatives within site constraints, and order-of-magnitude opinions of probable capital, operational, and maintenance costs. Developed 3-D visualizations and models of the treatment alternatives.

Conducted Step-2 Enhanced Coagulation criteria testing of the Stage 1 D/DBP Rule for several drinking-water treatment facilities in southern California. Established points of diminishing returns for facilities with raw waters not amenable to enhanced coagulation.

Conducted hydraulic testing of newly built full-scale wastewater chlorine contactors to meet recycled water disinfection requirements under Title 22. Tracer testing was required by the California Department of Public Health (CDPH) to identify the flow rate necessary to achieve a minimum modal time of 90 minutes to ensure that adequate disinfection of the recycled water is maintained.

Conducted a series of rapid small-scale column tests (RSSCTs) to evaluate total organic carbon (TOC) breakthrough on the post-filter adsorber granular activated carbon (GAC). Provided recommendations for GAC replacement rates.

Evaluated a range of ion exchange (IX) resins for removal of organic color from groundwater. Developed optimal resin regeneration process. Best performing resin was selected for further pilot-scale demonstration. Full-scale plant is currently in design.

Conducted sampling and analysis of groundwater sources for over 50 constituents. Evaluated a range of treatment alternatives, including conventional coagulation/filtration and ion exchange.

Operated an ozonation pilot treatment unit to evaluate the effect of ozone generator feed gas on the production of bromate. Evaluated bromate formation by ozone generated from ambient air and liquid oxygen (LOX). Full-scale water treatment plant built on a LOX facility based on the findings.

Conducted a series of filter coring procedures in open-top and vessel filters. Filter media evaluations were used to establish a media replacement schedule.

Conducted a feasibility study of deploying turbines for energy recovery at reservoirs, in water treatment facilities, and in drinking-water distribution systems. Local topography and distribution system evaluations were conducted.

Environmental Remediation and Cost Estimation

Conducted analysis of thermal power plant waste streams, evaluated remediation treatment alternatives for the waste streams, including feasibility and cost estimates. Evaluated plant effluent data to assess treatment alternatives, treatment limitations, and disposal options for the treatment concentrate. Also, calculated the feasibility of constructing landfills, their capacities, usable life projections, capital and operations and maintenance (O&M) cost estimates, and net present value (NPV) analyses.

Evaluated ex-situ (ion exchange, fluidized bed reactor) and in-situ (biological remediation) remediation technologies. Calculated and determined the feasibility and effectiveness of several groundwater treatment alternatives for the treatment and remediation of organic and inorganic groundwater contaminants. Feasibility of alternatives was based on treatment effectiveness, waste stream production by various processes, site constraints, implementability, and maintenance. Calculated capital and O&M costs associated with the treatment systems.

Prepared cost estimates and conducted feasibility studies for mitigation and remediation alternatives for commercial and residential developments with vapor intrusion risks from petroleum and chlorinated solvent contamination. Evaluated potential efficacy, technical and cost limitations, permitting, and regulatory approval considerations.

Conducted analyses of aged municipal water wells including evaluations of surrounding hydrogeological conditions, effectiveness and efficiencies of various pumping depths and pumping regimes, annular seal integrities, and impacts of corrosion on well performance.

Additional Information

Peer Reviewer

Water Research

CREDENTIALS & PROFESSIONAL HONORS

  • D.Env., Environmental Science and Engineering, University of California, Los Angeles (UCLA), 2011
  • M.S., Environmental Health Sciences, University of California, Los Angeles (UCLA), 2006
  • B.S., Environmental Systems, University of California, San Diego, 2004
  • Bay Area Water Works Association (BAWWA), Board Member

    UCLA Environmental Science & Engineering Program Endowment, 2006–2008

    Completed ABET/ASAC Accredited Industrial Hygiene M.S. Program, UCLA, 2006

    Environmental Systems Major Thesis of the Year, UCSD, 2004

    California Institute for Telecommunications and Information Technology, Cal-(IT)², Fellow of the Year, UCSD, 2002

LICENSES & CERTIFICATIONS

Licensed Professional Civil Engineer, California #84362

Board Certified Environmental Scientist (BCES) in Surface Water Resources, # 14-60010, Board of American Academy of Environmental Engineers and Scientists

HAZWOPER 40-hour Training

LANGUAGES

  • Russian