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I’m upgrading our process exhaust system and want to bring volatile organic compound (VOC) and ammonia (NH₃) emissions well below current limits. Emission reduction is the sole focus; monitoring and paperwork are handled in-house. Right now I’m weighing four control options: adsorption, biofiltration, catalytic oxidation and a wet scrubber. I need a clear, data-driven comparison that shows which technology—or hybrid setup—will give the highest removal efficiency for our flow rate and composition, and what it will cost to install and run. Please deliver: • Mass and energy balances for each option, including predicted % removal of VOCs and NH₃ • Equipment sizing, PFDs/P&IDs and key specification sheets • Estimated CAPEX, OPEX and maintenance...

I'm looking to establish a new company specializing in the installation and maintenance of wastewater management systems across all property types: commercial, industrial, and domestic. Our services will encompass: - Installation and maintenance of septic tanks, sewage treatment plants, and greywater recycling systems. Ideal candidates should possess: - Proven experience in wastewater management systems. - Relevant certifications and licenses. - Strong project management skills. - Ability to work on diverse property types.

I'm seeking an experienced geologist in Portland, OR, for regulatory compliance on UST-related groundwater sites. The ideal candidate will have: - Expertise in risk-based report writing, specifically the groundwater section - Experience in groundwater sampling and monitoring - Familiarity with Oregon UST regulations and requirements Key tasks include: - Writing the groundwater section of a risk-based report - Groundwater sampling as needed Knowledge of contaminant levels, groundwater flow direction, and historical data is essential.

I look for hardware developer. Electronics schema and pcb designer.

I have a residential project that is already under construction and the building department has requested a REScheck demonstrating full compliance with IECC 2021. All architectural and envelope details are available; what I need is the completed energy compliance report, ready to submit. Please use the latest REScheck software, enter the project data, and run it against the 2021 code. Deliverables (PDF and digital file): • Signed REScheck compliance report meeting IECC 2021 • The native .rck file so future edits remain possible • A short note outlining any insulation, window, or envelope assumptions used to achieve compliance Once the report passes with no outstanding corrections, the job is done.

I need my current river model in HEC-RAS refined so it reliably supports flood management decisions. All geometric files, cross-sections, hydrologic boundary conditions, survey points, and historical high-water marks are already organised and ready for import, so you will be working with a complete and detailed data set rather than starting from scratch. The assignment is to adjust roughness coefficients, bank stations, ineffective flow areas, and any other relevant parameters until the simulated water-surface elevations match observed events within an acceptable tolerance. Once the model is behaving consistently across a range of flows, generate clear channel and floodplain delineations that I can overlay in GIS for downstream engineering and permitting work. Flood maps or velocity grids...

I’m ready to move forward with a two-container residence—two 40 ft shipping containers joined into a single-story, 6 feet between container, 2 feet above the ground, open-floor-plan home with 2 bedrooms —on my 2.5-acre parcel in Paulden, AZ. Because the lot sits in a mapped flood zone, I need a permit package that satisfies Yavapai County building and flood-plain regulations. Here’s what I need from you: • Site plan and layout that clearly positions the containers, parking, setbacks, and required drainage features on the property. • Detailed architectural drawings suitable for county submittal, showing foundation, structural tie-ins between the containers, roof framing, elevations, and any flood-proofing details. • Structural engineering c...

I am ready to move ahead with the full design-and-build of a new PVC water main serving 20 residential plots on our development site off Bellswood Lane. The route runs entirely through soft soil, and each plot will need variable pressure so that owners can install everything from standard taps to high-flow garden systems without retrofitting pumps later. Here is what I need from you: • Detailed hydraulic sizing and layout drawings (AutoCAD / Civil 3D or similar) showing pipe runs, valves, hydrants, and individual plot branches. • Pressure-zone modelling (EPANET or equivalent) that demonstrates reliable variable pressure across all 20 plots when tied into the municipal feed. • Trench, bedding, and backfill specifications tailored to our soft-soil conditions, including a...

I’m ready to move a commercial site in Alpharetta, GA through the Land Disturbance Permit process and need a full drawing package prepared. You will work from my current boundary and topo surveys (DWG), building your plans directly on that base. The scope covers everything the City of Alpharetta and Fulton County require for a commercial LDP submission: a detailed site plan tied to my survey control, complete storm-water management design, erosion and sediment control sheets that satisfy Georgia EPD “green book” standards, and a full hydrology report with supporting calculations. Deliverables • PDF plan set suitable for permit submittal, stamped by a Georgia PE or RLA • Original CAD files in the same coordinate system as my survey • Separate full hy...

We are a climate-tech company based in Coimbatore, India, seeking an experienced Electrical Control Panel Engineer or UL/CSA-certified Fabricator to design and build a compliant industrial control panel for export to Canada. The panel must meet UL 508A (USA) and CSA C22.2 No. 286 (Canada) standards. The system will power and control our environmental air-purification unit integrated with IoT/PLC components. Scope of Work: Design, fabricate, and document a complete industrial control panel using UL/CSA-certified components. Include a Main Power Cord (SOOW or SJTO type) and a UL-listed Circuit Breaker (Type C or D curve) for primary overcurrent protection. Integrate a DIN-rail mounted SMPS (24VDC output) to power either a PLC (Allen-Bradley/Siemens) or a custom PCB-based controller. Pr...

I'm seeking an expert to help design a culvert and gravel driveway in a floodplain for a residential project (single home access). I am currently under contract on a parcel of land in Cabarrus County North Carolina. It will need an engineered culvert and gravel driveway design to cross a creek (20 feet wide). It is in a 100 yr flood zone. Cabarrus County Planning and Zoning said we will need a Floodplain Development Permit and I'm told that needs to include a flood study. The culvert and gravel driveway are all we are doing in the floodplain, the house and all utilities will be outside of it. The seller told us that the damaged culvert has been there for over 30 years and failed in early 2024 with the flooding that hit this area. It has two 24 inch concrete pipes. Key consider...

I need a hazardous area classification in line with IEC 60079-10-1:2020 and in accordance with CSA C22.1 (Canadian Electrical Code) and applicable CSA C22.2 / CSA 60079 standards for a heated enclosure with detailed analysis report with recommendation and conclusion for electrical fittings in the enclosure and develop HAC drawings. The enclosure is used for temperature control of electrical equipment and contains the following: - Vent from SDR septic tank - Control panels, power distribution panels, and instrumentation panels - Heating elements Ideal skills and experience for this job include: - Expertise in hazardous area classification - Knowledge of electrical equipment and safety standards - Experience with temperature control systems in potentially hazardous environments - Releva...

I need detailed research on improving the durability of recycled concrete aggregate (RCA) using microbial induced calcite precipitation (MICP). The focus is on durability, specifically freeze-thaw resistance. Key Requirements: - Investigate the impact of MICP on RCA durability. - Conduct freeze-thaw resistance tests. - Provide comprehensive analysis and documentation. Ideal Skills: - Background in civil engineering or materials science. - Experience with MICP and concrete durability testing. - Strong research and analytical skills. Looking for a professional who can deliver thorough and reliable results. Certainly! Below is a revised version of the research article with added tables, diagrams, and additional references to enhance its completeness and visual appeal. Enhancing Recycled ...

Glocert International is looking to partner with experienced, UK-based freelance auditors who are fully qualified to audit both ISO 14001 and ISO 50001. The assignments are carried out on-site, so you’ll need the confidence to manage the entire audit process independently while maintaining the professionalism, impartiality, and clear reporting standards our clients expect. Your background should reflect solid practical exposure—at least four years of ISO 14001 auditing and eight or more years of ISO 50001 work. Strong technical insight, an engaging yet objective communication style, and an ability to build rapport with site teams and stakeholders are all essential. To move forward, please share: • an up-to-date CV or profile • copies of relevant auditor certific...

I'm seeking a civil engineer to develop a limites site specific stormwater management plan focused on residential areas. The primary objective is to control stormwater effectively. Key Requirements: - Design strategies to manage and control stormwater in residential neighborhoods. - Ensure plans comply with county site servicing standards - Provide detailed reports and documentation. Ideal Skills and Experience: - Expertise in stormwater management and civil engineering. - Experience with residential projects. - Excellent communication and report-writing skills.