Council of Scientific and Industrial Research

Prasanta Kumar Das

Arabinda Chaudhuri

Rajkumar Banerjee

Nalam Madhusudhana Rao

Gollapudi Venkata Srilakshmi

Pratyush Maiti

Subarna Maiti

Soumya Haldar

Krishna Kanta Ghara

Samir Kumar Kanjibhai Charola

Neha Pratap Patel

Molasses based alcohol distilleries generate highly contaminated, dark coloured and foul smelling effluent (bio-methanated spent wash, BMSW, also known as post methanated effluent). While the prevailing practices for treatment of alcohol distillery effluents operate on the premises of 'liability management', high potassium content of spent wash (ca. 2% w/v in BMSW) offers an opportunity for its utilisation in production of potash fertilizers&#x2014;a major agricultural input. The present invention provides process for potash recovery from BMSW with concomitant environmental remediation of effluent. The process involves pre-treatment of BMSW followed by potash recovery through selective precipitation technique to produce potash fertilizers and activated carbon while generating a relatively benign effluent (&#x3e;80% remediation). It may further be possible for the alcohol distilleries to achieve ZLD status by incorporating commercially practiced water recovery techniques (viz., multiple effect evaporation/nano-filtration/reverse osmosis etc.) for downstream processing of the process effluent.

Process for potash recovery from biomethanated spent wash with concomitant environmental remediation of effluent

The present invention provides processes for the synthesis of novel cationic amphiphiles capable of facilitating transport of biologically active molecules into cells wherein the said amphiphiles contain N-hydroxyalkyl group and have at least one hydroxyalkyl group containing 1-3 carbon atoms directly linked to the positively charged nitrogen atom.

Process for synthesis of novel cationic amphiphiles containing N-hydroxyalkyl group for intracellular delivery of biologically active molecules

The present invention provides novel cationic amphiphiles containing novel N-hydroxyalkyl group and therapeutic formulations containing the said amphiphiles that are capable of facilitating transport of biologically active molecules into cells. The said novel cationic compounds having the following structural formula:

Cationic amphiphiles containing N-hydroxyalkyl group for intracellular delivery of biologically active molecules

Process for synthesis of novel cationic amphiphiles containing N-hydroxyalkl group for intracellular delivery of biologically active molecules

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Hyderabad Telangana, India

Prasanta Kumar Das