Application of zeolitic material synthesised from fly ash to the decontamination of waste water and flue gas

2002 ◽  
Vol 77 (3) ◽  
pp. 292-298 ◽  
Author(s):  
X Querol ◽  
N Moreno ◽  
J C Umaña ◽  
R Juan ◽  
S Hernández ◽  
...  
Keyword(s):  
Waste Water ◽  
Fly Ash ◽  
Flue Gas ◽  
Zeolitic Material

TEKNOLOGI PENANGANAN EMISI GAS DARI INSINERATOR SAMPAH KOTA

2019 ◽  
Vol 11 (2) ◽  
Author(s):  
Prasetiyadi Prasetiyadi ◽  
Wiharja Wiharja ◽  
Sri Wahyono
Keyword(s):  
Fly Ash ◽  
Pressure Drop ◽  
Spray Drying ◽  
Flue Gas ◽  
Bag Filter

Proses pembakaran sampah kota melalui insinerator akan menghasilkan uap panas yang bisa dimanfaatkan  untuk membangkitkan energi listrik, akan tetapi pada proses ini juga menghasilkan output berupa flue gas yang didominasi oleh partikel (fly ash) dan gas beracun seperti: HCl, SO2, NOx, HF, Hg, Cd dan Dioxin. Sebelum dibuang ke udara bebas, flue gas tersebut harus diolah agar memenuhi baku mutu lingkungan. Teknologi penanganan partikel dan gas polutan tersedia dan dapat dibuat dengan berbagai kapasitas. Untuk menangani flue gas dari insinerator sampah digunakan Quencher untuk menekan laju pembentukan kembali dioksin dan furan setelah proses pembakaran,  Spray Drying Absorption (SDA) untuk mengikat gas asam dan  logam berat serta bag filter untuk menangkap partikel. Selain itu digunakan ID Fan dan Cerobong Asap untuk pengatasi pressure drop yang terjadi akibat pengoperasian peralatan APC dan melepas ke udara.

Stabilization of lead in waste water and farmland soil using modified coal fly ash

2021 ◽  
pp. 127957
Author(s):  
Lu Wang ◽  
Xunrong Huang ◽  
Jianxin Zhang ◽  
Feng Wu ◽  
Fuhao Liu ◽  
...  
Keyword(s):  
Waste Water ◽  
Fly Ash ◽  
Coal Fly Ash ◽  
Farmland Soil

High-value Zeolitic Material from Bagasse Fly Ash: Utilization for Dye Elimination

2013 ◽  
Vol 85 (6) ◽  
pp. 558-567 ◽  
Author(s):  
Bhavna A Shah ◽  
Ajay V Shah ◽  
Harendra D Patel ◽  
Chirag B Mistry
Keyword(s):  
Fly Ash ◽  
Bagasse Fly Ash ◽  
Zeolitic Material ◽  
Fly Ash Utilization

Carbon capture and storage using coal fly ash with flue gas

2021 ◽  
Author(s):  
Tamilselvi Dananjayan Rushendra Revathy ◽  
Andimuthu Ramachandran ◽  
Kandasamy Palanivelu
Keyword(s):  
Fly Ash ◽  
Flue Gas ◽  
Carbon Capture ◽  
Coal Fly Ash ◽  
Carbon Capture And Storage ◽  
And Storage

scholarly journals Combined NOx and NH3 Slip Reduction in a Stoker Boiler Equipped with the Hybrid SNCR + SCR System FJBS+

Energies ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 8599
Author(s):  
Robert Wejkowski ◽  
Sylwester Kalisz ◽  
Przemysław Garbacz ◽  
Izabella Maj
Keyword(s):  
Fly Ash ◽  
Flue Gas ◽  
Full Range ◽  
Nox Reduction ◽  
Main Idea ◽  
Cost Effective ◽  
Combustion Products ◽  
Ammonia Removal ◽  
Ammonia Content ◽  
Ammonia Slip

The application of secondary NOx control methods in medium to low-capacity furnaces is a relatively new topic on the energy market and thus requires further research. In this paper, the results of full-scale research of SNCR and hybrid SNCR + SCR methods applied into a 29 MWth solid fuel fired stoker boiler is presented. The tests were performed for a full range of boiler loads, from 33% (12 MWth) to 103% (30 MWth) of nominal load. A novel SNCR + SCR hybrid process was demonstrated based on an enhanced in-furnace SNCR installation coupled with TiO2-WO3-V2O5 catalyst, which provides extra NOx reduction and works as an excess NH3 “catcher” as well. The performance of a brand-new catalyst was evaluated in comparison to a recovered one. The emission of NOx was reduced below 180 mg NOx/Nm3 at 6% O2, with ammonia slip in flue gas below 10 mg/Nm3. Special attention was paid to the analysis of ammonia slip in combustion products: flue gas and fly ash. An innovative and cost-effective method of ammonia removal from fly ash was presented and tested. The main idea of this method is fly ash recirculation onto the grate. As a result, ammonia content in fly ash was reduced to a level below 6.1 mg/kg.

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