Variable landfill leachate characteristics

Complex pollutants content

Rich organic matter, i.e. high COD, BOD

High ammonia (NH₃-N) content

High concentration of heavy metal ions and salinity

DTRO membrane equipment combined with applicable solutions

Angola Leachate Treatment Project

Project Detail

The one-stop solution offered by Jiarong is applicable for leachate and other complex wastewater treatment. The solution was efficient for the client in Angola to reduce wastewater discharge. Also, the permeate quality met the local effluent discharge standard.

Capacity: 30 m³/day

Influent quality:

BOD ≤ 12,000 mg/L

COD ≤ 20,000 mg/L

TSS ≤ 1,000 mg/L

NH₄⁺ < 2,000 mg/L

Conductivity ≤ 25,000 us/cm

pH 6-9

Temperature 5-40 ℃

Effluent quality:

BOD ≤ 40 mg/L

COD ≤ 150 mg/L

TSS ≤ 60 mg/L

NH₄⁺ < 10 mg/L

pH 6-9

Site Photos：

Brazil Containerized Leachate Treatment Project

Project Detail

The one-stop solution offered by Jiarong is applicable for leachate and other complex wastewater treatment. The solution was efficient for the client in Brazil to reduce wastewater discharge. Also, the permeate quality met the local effluent discharge standard.

Project feature

The maximum flow rate is 1.5 L/s.

The maximum leachate treatment flow rate for this design can be 5.4 m³/h or 120m³/h, depending on the client's demands.

The design treatment capacity is 250 m³/d with 90 % operating capacity.

Influent quality:

SS ≤ 10mg/L

Conductivity ≤ 20,000 us/cm

NH₃-N  ≤ 1,100 mg/L

Total Nitrogen ≤ 1,450 mg/L

COD ≤ 12,000 mg/L,

BOD ≤ 3,500 mg/L

Total Hardness (CaCO₃)≤ 1,000 mg/L

Total Alkalinity (CaCO₃) ≤ 5,000 mg/L

SiO₂ ≤ 30 mg/L

Sulfide ≤ 3 mg/L

Temperature 15-35℃

pH 6-9

Effluent quality:

COD ≤ 20 mg/L,

BOD ≤ 100 mg/L,

NH₃-N ≤ 20 mg/L,

pH 6-9

Site Photos：

Columbia Leachate Treatment Project

The one-stop solution offered by Jiarong is applicable for leachate and other complex wastewater treatment. The solution was efficient for the client in Columbia to reduce wastewater discharge. Also, the permeate quality met the local effluent discharge standard.

Project feature

The maximum flow rate is 1.5 L/s.

The maximum leachate treatment flow rate for this design can be 5.4 m³/h or 120 m³/h, depending on the client's demands.

Designed Influent/Effluent Quality Index

Influent qualiy:

COD_cr ≤ 5,000 mg/L

BOD₅ ≤ 4,000 mg/L

SS ≤ 400 mg/L

Cl 1,300-2,600 mg/L

pH 6-8

Effluent quality:

COD_cr ≤ 300 mg/L

BOD₅ 200 mg/L

SS 100 mg/L

Cl 300 mg/L

pH: 6-8

Local effluent discharge limitation:

COD_cr ≤ 2,000 mg/L

BOD₅ ≤ 800 mg/L

SS ≤ 400 mg/L

Cl ≤ 500 mg/L

pH 6-9  

Shenyang Daxin leachate emergency treatment project

Project feature

Large scale: 0.94 million m³ leachate, the largest leachate emergency treatment project in the world.

Big challenge: extremely high electrical conductivity, ammonia concentration and quite strict effluent discharge standard.

Intensive project schedule:

Yield 800 tons/d permeate within 1 month

Yield 2,000 tons/d permeate within 3 months

High efficiency: 18 sets of Jiarong container systems were arranged. The permeate quality fully met the local effluent discharge standard.

New Biz model: Jiarong invests in the operation of the project and charges a treatment fee per ton of wastewater treated

Raw water quality:

NH₄-N: 2,500 mg/L

COD: 3,000 mg/L

EC: 4,000 μs/cm

Effluent quality:

NH3-N 5 mg/L

COD 60 mg/L (meets national standard GB18918-2002 Class-A)

Treatment process: 

Pretreatment + Two-stage DTRO + HPRO + MTRO + IEX

Timeline of project

March 30^th, 2018: Contract signed

April 30^th, 2018: The effluent reaches 800 tons per day

June 30^th, 2018: The effluent reaches 2100 tons per day

October 31^st, 2019: The landfill leachate generated in this site was fully treated and legally discharged