Municipal Wastewater & Biosolids Drying for Indonesia · Engineered Since 1998

Wet biosolids & septage sludge is a liability.
Dried biosolids is a product.

Gem Drytech Systems LLP designs belt, rotary and paddle dryers that turn municipal WWTP (IPALD) biosolids, septage (lumpur tinja) from IPLT facilities and water-treatment-plant sludge into stabilized, low-odor material for compost blending, fertilizer feedstock or fuel co-processing — cutting landfill (TPA) volume, supporting SPALD and KLHK wastewater compliance, and unlocking new revenue for utilities and operators. Paybacks typically under 3 years.

Send Us a Biosolids / Septage Sample → See the ROI Math

Dryers Delivered

Repeat-Order Rate

0-0 yrs

Typical Payback

<0%

Spares Cost / Equip. Value

The Business Case

Six forces are pushing every municipal utility and SPALD operator to rethink biosolids and septage — right now.

If any of these sound familiar, drying changes your economics.

TPA Capacity & Odor Exposure

Wet biosolids and septage trucked to municipal TPA landfills decompose fast, generating leachate, methane and odor complaints, at a time when landfill capacity near many Indonesian cities is under increasing strain.

Tightening Institutional & Environmental Rules

SPALD infrastructure (IPLT for septage, IPALD for centralized municipal wastewater) is governed under Permen PUPR No. 04/PRT/M/2017; treated effluent must meet the domestic wastewater quality standard under Permen LH/BPLH No. 11/2025 (tiered BOD/TSS limits by facility size, replacing Permen LHK No. 68/2016); and biosolids marketed as compost or fertilizer must meet the SNI 19-7030-2004 compost quality standard and, if sold as a registered product, Permentan No. 70/2011 on organic fertilizer. Dried, stabilized biosolids turn compliance into a feature.

Biosolids / Septage → Saleable Product

Dried to 10–15% moisture, WWTP biosolids and IPLT septage become compost feedstock, blended organic fertilizer, or fuel for co-processing. Your biggest disposal cost becomes a revenue line.

Land & TPA Capacity Constraints

Drying beds, sludge lagoons and shrinking TPA capacity near urban centers consume valuable land and draw community complaints — a growing constraint for utilities expanding SPALD-T coverage.

Hauling & Volume

Cutting moisture from 75–85% to 10–15% reduces volume several-fold and per-tonne haulage cost sharply. Fewer truck trips to TPA, less spillage, fewer odor complaints along the route.

Bottom Line

Typical payback on a Gem belt, rotary or paddle dryer is 2–3 years — often funded by compost/fertilizer or fuel revenue plus avoided disposal and compliance costs.

Regulatory citations current as of July 2026. Confirm current requirements with the relevant Dinas Lingkungan Hidup, the municipal SPALD operator, and KLHK before publishing or citing in client materials.

Who This Is For

If biosolids or septage disposal is costing you money, we built this for you.

Municipal Utility & Sanitation Directors

PDAM, Dinas Lingkungan Hidup and UPTD/BLUD air limbah leaders looking to turn biosolids and septage streams into a stabilized, revenue-generating product line.

IPLT / IPALD & SPALD Operators

Especially cities expanding SPALD-T (centralized) coverage and facing shrinking TPA capacity and rising haulage costs.

Project & Procurement Consultants

Evaluating belt, rotary or paddle dryers for a 10–100 TPD municipal biosolids or septage sludge stream.

Real Numbers — Indonesian Municipal Utility (illustrative)

What drying actually returns.

Two illustrative scenarios from typical Indonesian municipal wastewater mass balances.

Case 1 — Municipal WWTP (IPALD) Biosolids Belt Dryer

25 TPD

Wet Input

→

6 TPD

Dried Output (78%→12% moisture)

~21 mo

Payback

IDR 2.8B

Net Benefit/Year

4.2×

Mass Reduction

25 TPD of wet municipal biosolids → ~1,800 t/yr of dried, stabilized cake for compost blending or fuel co-processing. Illustrative net ≈ IDR 2.8B/yr. Illustrative CAPEX: IDR 5B.

Case 2 — Septage (Lumpur Tinja) IPLT Paddle Dryer

20 TPD

Wet Input

→

3.5 TPD

Dried Output (85%→15% moisture)

~24 mo

Payback

IDR 2.1B

Net Benefit/Year

5.7×

Mass Reduction

20 TPD of wet septage from IPLT → ~1,050 t/yr of dried, stabilized cake for compost feedstock. Illustrative net ≈ IDR 2.1B/yr. Illustrative CAPEX: IDR 4.2B.

IDR 9.2B

Combined CAPEX

2,850 t/yr

Dried Biosolids Output

~22 months

Combined Payback

IDR 4.9B/yr

Combined Net Benefit

Illustrative economics based on typical moisture levels and Indonesian compost/fuel offtake prices. We model your exact ROI from your utility's biosolids/septage volume, moisture and offtake price during the pilot trial.
**These are approximate calculations. Actual values may vary depending on the specific client.

What We Help You Make

From municipal waste to product.

Every biosolids stream has a moisture profile — and a dried product it can become.

Municipal WWTP (IPALD) Biosolids

Activated-sludge biosolids dried to a stable, low-odor cake for compost or land application.

Septage / Lumpur Tinja (IPLT)

Septic-tank sludge collected via SPALD-S and treated at IPLT, dried and stabilized for reuse.

Water Treatment Plant (WTP) Sludge

Coagulation sludge from drinking-water treatment dried for stabilized disposal or construction-material blending.

Stormwater / Retention Pond Sediment

Dredged pond and channel sediment dried for stabilized, lower-volume disposal.

Co-Composting Feedstock

Biosolids blended with market or organic waste, dried toward SNI 19-7030-2004 compost quality.

Biosolids-Derived Fuel

Dried biosolids prepared for cement co-processing or boiler fuel blending.

Our Journey

From vision to global execution.

To dryers running on four continents.

1998

Founded

GEM begins with a focus on Tea & Coconut Processing Systems.

2003

Engineering Foundation

Director joins business with Finance & Economics degree, UT Austin.

2015

Product Evolution

First large band dryer (3250mm) for Franklin Baker, Philippines.

2020+

Sludge & Specialty

Expansion into sludge, agro-waste and organic-residue drying, including municipal biosolids and septage.

2026

Global Scale

112+ dryers delivered · Representatives in USA, Australia, Africa, South America.

Where We Work

Global footprint.

Americas

USA · Canada · Brazil · Argentina — Nutrativa Global, Basic Grain (USA)

Europe

Active expansion into the EU market — focus on sludge, biomass, food waste drying.

Asia & Municipal Utilities

India · Philippines · Indonesia · Malaysia · Vietnam · Thailand · Sri Lanka — municipal and industrial sludge-drying references available on request

Australia & Africa

Representative offices established — TN Baker, Zimbabwe

Seven things you'll only get from us.

Said in plain language. No consultancy-speak.

✓

Reliable & Durable

Dryers built to run continuously, not seasonally.

🛡

Audit-Ready

Specs accepted by regulators and buyers — SPALD framework (Permen PUPR 04/2017), domestic wastewater standard (Permen LH/BPLH 11/2025), SNI 19-7030-2004 compost quality, ISO.

⚙

Standardized & Low Maintenance

Engineered for easy spares, predictable service — under 0.5% spares cost typical.

📈

Consistent Output Quality

Repeatable moisture targets, batch after batch.

🏭

Engineering Quality

21+ years of design refinement built into every weld.

⚖

Low Cost of Ownership

Pilot trial → right-sized capex → ROI as planned.

🤝

Service That Doesn't Disappear

Founder-led — issues escalate without bureaucracy.

Picking the wrong dryer is expensive.

WRONG VENDOR / WRONG SPEC

Incorrect plant layout & machinery selection
Low quantity and inconsistent quality of output
Product rejections from inconsistent drying
Frequent breakdowns, high manpower cost
Low return on investment
High operation, maintenance and lifetime cost

THE GEM WAY

Pilot-tested layout matched to your biosolids/septage profile
Consistent moisture target — every batch
Spec verified at our facility before purchase
Predictable maintenance, low breakdown rate
Calculated ROI delivered as planned
1-year warranty + spares + commissioning training

We have built this line — for your peers.

"The installation and commissioning of the dryer for belt press sludge and centri-cleaner sludge were carried out seamlessly. The equipment demonstrated reliable operation and high-quality workmanship."

Mr. Mahesh Dwivedi

Technical Director, Gayatrishakti Paper & Boards, India

"The dryer performed reliably and efficiently, exceeding our expectations in both functionality and safety standards. We confidently recommend Gem Drytech as a reliable partner."

Mr. Anil Kumar Sinha

Technical Director, Rajratan, India

"The output of the dryer is more than committed. We still continue to provide complimentary service to the client even after 4 years. Client refers us to other potential clients regularly."

Mr. V.M. Singh

Factory Manager, Jaquar Group, India

Next Steps

Four steps to a running dryer.

Most clients move from first call to commissioning in 6–10 months.

Discovery Call

30 min. We understand your biosolids/septage stream, current disposal cost, regulatory drivers.

Pilot Trial

Send us a sample. We run trials at our Kolkata pilot plant and share moisture data.

Sizing & ROI

We size the dryer, propose technology, and build a financial model with your inputs.

Build & Commission

Manufacture in 12–16 weeks, install, commission, train your team, and back it up.

Get Your Free ROI Report

Turn Your Waste Into Revenue

Fill in the form and our experts will analyze your sample with a custom ROI model — typically within 5 working days.

📊

Custom ROI Calculation

Based on your specific volume and moisture

🔬

Free Pilot Testing

We test your sample at our Kolkata facility

⚙️

Tailored Dryer Sizing

Belt, rotary or paddle — we recommend the right fit

📋

Compliance Guidance

SPALD, KLHK & SNI requirements covered

⭐ 112+ Dryers Delivered 🌍 7+ Countries ⏱ 2-3 Year Payback

Request Your Free ROI Report

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Wet biosolids & septage sludge is a liability.Dried biosolids is a product.

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